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The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a
keyboard Keyboard may refer to: Text input * Keyboard, part of a typewriter * Computer keyboard ** Keyboard layout, the software control of computer keyboards and their mapping ** Keyboard technology, computer keyboard hardware and firmware Music * Mu ...
, which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings. It was invented in Italy by
Bartolomeo Cristofori Bartolomeo Cristofori di Francesco (; May 4, 1655 – January 27, 1731) was an Italian maker of musical instruments famous for inventing the piano. Life The available source materials on Cristofori's life include his birth and death recor ...
around the year 1700.


Description

The word "piano" is a shortened form of ''pianoforte'', the Italian term for the early 1700s versions of the instrument, which in turn derives from ''clavicembalo col piano e forte'' (key
cimbalom The cimbalom (; ) or concert cimbalom is a type of chordophone composed of a large, trapezoidal box on legs with metal strings stretched across its top and a damping pedal underneath. It was designed and created by V. Josef Schunda in 1874 in ...
with quiet and loud)Pollens (1995, 238) and ''
fortepiano A fortepiano , sometimes referred to as a pianoforte, is an early piano. In principle, the word "fortepiano" can designate any piano dating from the invention of the instrument by Bartolomeo Cristofori in 1698 up to the early 19th century. M ...
''. The Italian musical terms ''piano'' and ''forte'' indicate "soft" and "loud" respectively, in this context referring to the variations in volume (i.e., loudness) produced in response to a pianist's touch or pressure on the keys: the greater the velocity of a key press, the greater the force of the hammer hitting the strings, and the louder the sound of the note produced and the stronger the attack. The first fortepianos in the 1700s allowed for a quieter sound and greater dynamic range than the
harpsichord A harpsichord ( it, clavicembalo; french: clavecin; german: Cembalo; es, clavecín; pt, cravo; nl, klavecimbel; pl, klawesyn) is a musical instrument played by means of a keyboard. This activates a row of levers that turn a trigger mechanism ...
. A piano usually has a protective wooden case surrounding the soundboard and metal strings, which are strung under great tension on a heavy metal frame. Pressing one or more keys on the piano's keyboard causes a wooden or plastic hammer (typically padded with firm felt) to strike the strings. The hammer rebounds from the strings, and the strings continue to vibrate at their resonant frequency. These vibrations are transmitted through a bridge to a soundboard that amplifies by more efficiently
coupling A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end mov ...
the acoustic energy to the air. When the key is released, a damper stops the strings' vibration, ending the sound. Notes can be sustained, even when the keys are released by the fingers and thumbs, by the use of
pedals A pedal (from the Latin '' pes'' ''pedis'', "foot") is a lever designed to be operated by foot and may refer to: Computers and other equipment * Footmouse, a foot-operated computer mouse * In medical transcription, a pedal is used to control ...
at the base of the instrument. The sustain pedal enables pianists to play musical passages that would otherwise be impossible, such as sounding a 10-note chord in the lower register and then, while this chord is being continued with the sustain pedal, shifting both hands to the treble range to play a melody and arpeggios over the top of this sustained chord. Unlike the
pipe organ The pipe organ is a musical instrument that produces sound by driving pressurized air (called ''wind'') through the organ pipes selected from a keyboard. Because each pipe produces a single pitch, the pipes are provided in sets called ''ranks' ...
and harpsichord, two major
keyboard instrument A keyboard instrument is a musical instrument played using a keyboard, a row of levers which are pressed by the fingers. The most common of these are the piano, organ, and various electronic keyboards, including synthesizers and digital pianos. ...
s widely used before the piano, the piano allows gradations of volume and tone according to how forcefully or softly a performer presses or strikes the keys. Most modern pianos have a row of 88 black and white keys, 52 white keys for the notes of the
C major C major (or the key of C) is a major scale based on C, consisting of the pitches C, D, E, F, G, A, and B. C major is one of the most common keys used in music. Its key signature has no flats or sharps. Its relative minor is A minor an ...
scale (C, D, E, F, G, A and B) and 36 shorter black keys, which are raised above the white keys, and set further back on the keyboard. This means that the piano can play 88 different pitches (or "notes"), spanning a
range Range may refer to: Geography * Range (geographic), a chain of hills or mountains; a somewhat linear, complex mountainous or hilly area (cordillera, sierra) ** Mountain range, a group of mountains bordered by lowlands * Range, a term used to i ...
of a bit over seven octaves. The black keys are for the " accidentals" (F/G, G/A, A/B, C/D, and D/E), which are needed to play in all twelve keys. More rarely, some pianos have additional keys (which require additional strings), an example of which is the
Bösendorfer Bösendorfer (L. Bösendorfer Klavierfabrik GmbH) is an Austrian piano manufacturer and, since 2008, a wholly owned subsidiary of Yamaha Corporation. Bösendorfer is unusual in that it produces 97- and 92- key models in addition to instrumen ...
Concert Grand 290 Imperial, which has 97 keys. Most notes have three strings, except for the bass, which graduates from one to two. The strings are sounded when keys are pressed or struck, and silenced by dampers when the hands are lifted from the keyboard. Although an acoustic piano has strings, it is usually classified as a percussion instrument rather than as a stringed instrument, because the strings are struck rather than plucked (as with a harpsichord or spinet); in the
Hornbostel–Sachs Hornbostel–Sachs or Sachs–Hornbostel is a system of musical instrument classification devised by Erich Moritz von Hornbostel and Curt Sachs, and first published in the in 1914. An English translation was published in the '' Galpin Society ...
system of instrument classification, pianos are considered
chordophone String instruments, stringed instruments, or chordophones are musical instruments that produce sound from vibrating strings when a performer plays or sounds the strings in some manner. Musicians play some string instruments by plucking the s ...
s. There are two main types of piano: the
grand piano The piano is a stringed keyboard instrument in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with dense wool felt; some early pianos used leather). It is played using a keybo ...
and the upright piano. The grand piano has a better sound and gives the player a more precise control of the keys, and is therefore the preferred choice for every situation in which the available floor-space and the budget will allow, as well as often being considered a requirement in venues where skilled pianists will frequently give public performances. The upright piano, which necessarily involves some compromise in both tone and key action compared to a grand piano of equivalent quality, is nevertheless much more widely used, because it occupies less space (allowing it to fit comfortably in a room where a grand piano would be too large) and is significantly less expensive. During the 1800s, influenced by the musical trends of the Romantic music era, innovations such as the
cast iron Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impuriti ...
frame (which allowed much greater string tensions) and
aliquot stringing Aliquot stringing is the use of extra, un-struck strings in the piano for the purpose of enriching the tone. Aliquot systems use an additional (hence fourth) string in each note of the top three piano octaves. This string is positioned slightly ab ...
gave grand pianos a more powerful sound, with a longer
sustain In sound and music, an envelope describes how a sound changes over time. It may relate to elements such as amplitude (volume), frequencies (with the use of filters) or pitch. For example, a piano key, when struck and held, creates a near-immedi ...
and richer tone. In the nineteenth century, a family's piano played the same role that a radio or phonograph played in the twentieth century; when a nineteenth-century family wanted to hear a newly published musical piece or
symphony A symphony is an extended musical composition in Western classical music, most often for orchestra. Although the term has had many meanings from its origins in the ancient Greek era, by the late 18th century the word had taken on the meaning ...
, they could hear it by having a family member play a simplified version on the piano. During the nineteenth century,
music publisher A music publisher is a type of publisher that specializes in distributing music. Music publishers originally published sheet music. When copyright became legally protected, music publishers started to play a role in the management of the intellect ...
s produced many types of musical works (symphonies, opera overtures, waltzes, etc.) in arrangements for piano, so that music lovers could play and hear the popular pieces of the day in their home. The piano is widely employed in classical, jazz, traditional and
popular Popularity or social status is the quality of being well liked, admired or well known to a particular group. Popular may also refer to: In sociology * Popular culture * Popular fiction * Popular music * Popular science * Populace, the tota ...
music for solo and ensemble performances, accompaniment, and for composing,
songwriting A songwriter is a musician who professionally composes musical compositions or writes lyrics for songs, or both. The writer of the music for a song can be called a composer, although this term tends to be used mainly in the classical music gen ...
and rehearsals. Although the piano is very heavy and thus not portable and is expensive, its musical versatility, the large number of musicians –both amateurs and professionals– trained in it, and its wide availability in performance venues, schools and rehearsal spaces have made it one of the Western world's most familiar musical instruments.


History

The piano was founded on earlier technological innovations in
keyboard instrument A keyboard instrument is a musical instrument played using a keyboard, a row of levers which are pressed by the fingers. The most common of these are the piano, organ, and various electronic keyboards, including synthesizers and digital pianos. ...
s.
Pipe organ The pipe organ is a musical instrument that produces sound by driving pressurized air (called ''wind'') through the organ pipes selected from a keyboard. Because each pipe produces a single pitch, the pipes are provided in sets called ''ranks' ...
s have been used since antiquity, and as such, the development of pipe organs enabled instrument builders to learn about creating keyboard mechanisms for sounding pitches. The first
string instrument String instruments, stringed instruments, or chordophones are musical instruments that produce sound from vibrating strings when a performer plays or sounds the strings in some manner. Musicians play some string instruments by plucking the s ...
s with struck strings were the hammered dulcimers, which were used since the Middle Ages in Europe. During the Middle Ages, there were several attempts at creating stringed
keyboard instrument A keyboard instrument is a musical instrument played using a keyboard, a row of levers which are pressed by the fingers. The most common of these are the piano, organ, and various electronic keyboards, including synthesizers and digital pianos. ...
s with struck strings. By the 17th century, the mechanisms of keyboard instruments such as the
clavichord The clavichord is a stringed rectangular keyboard instrument that was used largely in the Late Middle Ages, through the Renaissance, Baroque and Classical eras. Historically, it was mostly used as a practice instrument and as an aid to compositi ...
and the
harpsichord A harpsichord ( it, clavicembalo; french: clavecin; german: Cembalo; es, clavecín; pt, cravo; nl, klavecimbel; pl, klawesyn) is a musical instrument played by means of a keyboard. This activates a row of levers that turn a trigger mechanism ...
were well developed. In a clavichord, the strings are struck by tangents, while in a harpsichord, they are mechanically plucked by quills when the performer depresses the key. Centuries of work on the mechanism of the harpsichord in particular had shown instrument builders the most effective ways to construct the case, soundboard, bridge, and mechanical action for a keyboard intended to sound strings.


Invention

The invention of the piano is credited to
Bartolomeo Cristofori Bartolomeo Cristofori di Francesco (; May 4, 1655 – January 27, 1731) was an Italian maker of musical instruments famous for inventing the piano. Life The available source materials on Cristofori's life include his birth and death recor ...
(1655–1731) of Padua, Italy, who was employed by
Ferdinando de' Medici, Grand Prince of Tuscany Ferdinando de' Medici (9 August 1663 – 31 October 1713) was the eldest son of Cosimo III de' Medici, Grand Duke of Tuscany, and Marguerite Louise d'Orléans. Ferdinando was heir to the Grand Duchy of Tuscany, with the title Grand Prince, from ...
, as the Keeper of the Instruments. Cristofori was an expert harpsichord maker, and was well acquainted with the body of knowledge on stringed keyboard instruments; this knowledge of keyboard mechanisms and actions helped him to develop the first pianos. It is not known exactly when Cristofori first built a piano. An inventory made by his employers, the Medici family, indicates the existence of a piano by the year 1700. The three Cristofori pianos that survive today date from the 1720s. Cristofori named the instrument ''un cimbalo di cipresso di piano e forte'' ("a keyboard of cypress with soft and loud"), abbreviated over time as ''pianoforte'', ''fortepiano'', and later, simply, piano. Cristofori's great success was designing a stringed keyboard instrument in which the notes are struck by a hammer. The hammer must strike the string, but not remain in contact with it, because continued contact would damp the sound and stop the string from vibrating and making sound. This means that after striking the string, the hammer must quickly fall from (or rebound from) the strings. Moreover, the hammer must return to its rest position without bouncing violently (thus preventing notes from being re-played by accidental rebound), and it must return to a position in which it is ready to play again almost immediately after its key is depressed, so the player can repeat the same note rapidly when desired. Cristofori's piano
action Action may refer to: * Action (narrative), a literary mode * Action fiction, a type of genre fiction * Action game, a genre of video game Film * Action film, a genre of film * ''Action'' (1921 film), a film by John Ford * ''Action'' (1980 fil ...
was a model for the many approaches to piano actions that followed in the next century. Cristofori's early instruments were made with thin strings, and were much quieter than the modern piano, but they were much louder and with more
sustain In sound and music, an envelope describes how a sound changes over time. It may relate to elements such as amplitude (volume), frequencies (with the use of filters) or pitch. For example, a piano key, when struck and held, creates a near-immedi ...
in comparison to the clavichord—the only previous keyboard instrument capable of dynamic nuance responding to the player's touch, the velocity with which the keys are pressed. While the clavichord allows expressive control of volume and sustain, it is relatively quiet even at its loudest. The harpsichord produces a sufficiently loud sound, especially when a coupler joins each key to both manuals of a two-manual harpsichord, but it offers no dynamic or expressive control over individual notes. The piano in some sense offers the best of both of the older instruments, combining the ability to play at least as loudly as a harpsichord with the ability to continuously vary dynamics by touch.


Early fortepiano

Cristofori's new instrument remained relatively unknown until an Italian writer,
Scipione Maffei Francesco Scipione Maffei (; 1 June 1675 – 11 February 1755) was a Italian writer and art critic, author of many articles and plays. An antiquarian with a humanist education whose publications on Etruscan antiquities stand as incunables of ...
, wrote an enthusiastic article about it in 1711, including a diagram of the mechanism, that was translated into German and widely distributed. Most of the next generation of piano builders started their work based on reading this article. One of these builders was
Gottfried Silbermann Gottfried Silbermann (January 14, 1683 – August 4, 1753) was a German builder of keyboard instruments. He built harpsichords, clavichords, organs, and fortepianos; his modern reputation rests mainly on the latter two. Life Very little is know ...
, better known as an organ builder. Silbermann's pianos were virtually direct copies of Cristofori's, with one important addition: Silbermann invented the forerunner of the modern sustain pedal, which lifts all the dampers from the strings simultaneously. This innovation allows the pianist to sustain the notes that they have depressed even after their fingers are no longer pressing down the keys. As such, by holding a chord with the sustain pedal, pianists can relocate their hands to a different register of the keyboard in preparation for a subsequent section. Silbermann showed Johann Sebastian Bach one of his early instruments in the 1730s, but Bach did not like the instrument at that time, saying that the higher notes were too soft to allow a full dynamic range. Although this earned him some animosity from Silbermann, the criticism was apparently heeded. Bach did approve of a later instrument he saw in 1747, and even served as an agent in selling Silbermann's pianos. "Instrument: piano et forte genandt"—a reference to the instrument's ability to play soft and loud—was an expression that Bach used to help sell the instrument when he was acting as Silbermann's agent in 1749.. "Instrument: piano et forte genandt" asan expression Bach also used when acting as Silbermann's agent in 1749." Piano making flourished during the late 18th century in the Viennese school, which included
Johann Andreas Stein Johann (Georg) Andreas Stein (16 May 1728 in Heidelsheim – 29 February 1792 in Augsburg) was an outstanding German maker of keyboard instruments, a central figure in the history of the piano. He was primarily responsible for the design of the ...
(who worked in
Augsburg Augsburg (; bar , Augschburg , links=https://en.wikipedia.org/wiki/Swabian_German , label=Swabian German, , ) is a city in Swabia, Bavaria, Germany, around west of Bavarian capital Munich. It is a university town and regional seat of the ...
, Germany) and the Viennese makers
Nannette Streicher Nannette Streicher (née Anna-Maria Stein; 2 January 1769, Augsburg – 16 January 1833, Vienna) was a German piano maker, composer, music educator, writer and a close friend of Ludwig van Beethoven. Life Nannette Streicher was the sixth child ...
(daughter of Stein) and Anton Walter. Viennese-style pianos were built with wood frames, two strings per note, and leather-covered hammers. Some of these Viennese pianos had the opposite coloring of modern-day pianos; the natural keys were black and the accidental keys white. It was for such instruments that Wolfgang Amadeus Mozart composed his
concertos A concerto (; plural ''concertos'', or ''concerti'' from the Italian plural) is, from the late Baroque era, mostly understood as an instrumental composition, written for one or more soloists accompanied by an orchestra or other ensemble. The ty ...
and
sonatas Sonata (; Italian: , pl. ''sonate''; from Latin and Italian: ''sonare'' rchaic Italian; replaced in the modern language by ''suonare'' "to sound"), in music, literally means a piece ''played'' as opposed to a cantata (Latin and Italian ''canta ...
, and replicas of them are built in the 21st century for use in authentic-instrument performance of his music. The pianos of Mozart's day had a softer tone than 21st century pianos or English pianos, with less sustaining power. The term ''
fortepiano A fortepiano , sometimes referred to as a pianoforte, is an early piano. In principle, the word "fortepiano" can designate any piano dating from the invention of the instrument by Bartolomeo Cristofori in 1698 up to the early 19th century. M ...
'' now distinguishes these early instruments (and modern re-creations) from later pianos.


Modern piano

In the period from about 1790 to 1860, the Mozart-era piano underwent tremendous changes that led to the modern structure of the instrument. This revolution was in response to a preference by composers and pianists for a more powerful, sustained piano sound, and made possible by the ongoing Industrial Revolution with resources such as high-quality
piano wire Piano wire, or "music wire", is a specialized type of wire made for use in piano strings but also in other applications as springs. It is made from tempered high-carbon steel, also known as spring steel, which replaced iron as the material ...
for strings, and precision
casting Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a ''casting'', which is ejected ...
for the production of massive iron frames that could withstand the tremendous tension of the strings. Over time, the tonal range of the piano was also increased from the five octaves of Mozart's day to the seven octave (or more) range found on today's pianos. Early technological progress in the late 1700s owed much to the firm of Broadwood.
John Broadwood John Broadwood (6 October 1732 – 17 July 1812) was the Scottish founder of the piano manufacturer Broadwood and Sons. Life Broadwood was born 6 October 1732 and christened 15 Oct 1732 at St Helens, Cockburnspath in Berwickshire, and grew up i ...
joined with another Scot, Robert Stodart, and a Dutchman,
Americus Backers Americus Backers (died 1778), sometimes described as the father of the English grand pianoforte style, brought the hammer striking action for keyboard instruments from his master Gottfried Silbermann's workshop in Freiburg to England in the mid-18 ...
, to design a piano in the harpsichord case—the origin of the "grand". This was achieved by about 1777. They quickly gained a reputation for the splendour and powerful tone of their instruments, with Broadwood constructing pianos that were progressively larger, louder, and more robustly constructed. They sent pianos to both
Joseph Haydn Franz Joseph Haydn ( , ; 31 March 173231 May 1809) was an Austrian composer of the Classical period. He was instrumental in the development of chamber music such as the string quartet and piano trio. His contributions to musical form have led ...
and Ludwig van Beethoven, and were the first firm to build pianos with a range of more than five octaves: five octaves and a fifth during the 1790s, six octaves by 1810 (Beethoven used the extra notes in his later works), and seven octaves by 1820. The
Viennese Viennese may refer to: * Vienna, the capital of Austria * Viennese people, List of people from Vienna * Viennese German, the German dialect spoken in Vienna * Music of Vienna, musical styles in the city * Viennese Waltz, genre of ballroom dance * ...
makers similarly followed these trends; however the two schools used different piano actions: Broadwoods used a more robust action, whereas Viennese instruments were more sensitive. By the 1820s, the center of piano innovation had shifted to Paris, where the Pleyel firm manufactured pianos used by Frédéric Chopin and the Érard firm manufactured those used by Franz Liszt. In 1821,
Sébastien Érard Sébastien Érard (born Sebastian Erhard, 5 April 1752 – 5 August 1831) was a French instrument maker of German origin who specialised in the production of pianos and harps, developing the capacities of both instruments and pioneering the mod ...
invented the double escapement
action Action may refer to: * Action (narrative), a literary mode * Action fiction, a type of genre fiction * Action game, a genre of video game Film * Action film, a genre of film * ''Action'' (1921 film), a film by John Ford * ''Action'' (1980 fil ...
, which incorporated a ''repetition lever'' (also called the ''balancier'') that permitted repeating a note even if the key had not yet risen to its maximum vertical position. This facilitated rapid playing of repeated notes, a musical device exploited by Liszt. When the invention became public, as revised by Henri Herz, the double escapement action gradually became standard in grand pianos, and is still incorporated into all grand pianos currently produced in the 2000s. Other improvements of the mechanism included the use of firm felt hammer coverings instead of layered leather or cotton. Felt, which
Jean-Henri Pape Jean-Henri Pape, born as Johann Heinrich Pape and also known as Henry Pape (1 July 1789 – 2 February 1875), was a distinguished French maker of pianos and harps in the early 19th century. Pape was born in Sarstedt, Germany, in 1789. He arri ...
was the first to use in pianos in 1826, was a more consistent material, permitting wider dynamic ranges as hammer weights and string tension increased. The
sostenuto pedal Piano pedals are foot-operated levers at the base of a piano that change the instrument's sound in various ways. Modern pianos usually have three pedals, from left to right, the soft pedal (or una corda), the sostenuto pedal, and the sustainin ...
( see below), invented in 1844 by
Jean-Louis Boisselot Jean-Baptiste-Louis Boisselot (18 August 1782 – 21 May 1847) was the founder of the piano company Boisselot & Fils. Coming from a family of violin makers based in Montpellier around 1770, he started his business by selling scores and musical ins ...
and copied by the
Steinway Steinway & Sons, also known as Steinway (), is a German-American piano company, founded in 1853 in Manhattan by German piano builder Heinrich Engelhard Steinweg (later known as Henry E. Steinway). The company's growth led to the opening of a ...
firm in 1874, allowed a wider range of effects. One innovation that helped create the powerful sound of the modern piano was the use of a massive, strong,
cast iron Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impuriti ...
frame. Also called the "plate", the iron frame sits atop the soundboard, and serves as the primary bulwark against the force of string tension that can exceed 20 tons () in a modern grand piano. The single piece cast iron frame was patented in 1825 in
Boston Boston (), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th- most p ...
by
Alpheus Babcock Alpheus Babcock (September 11, 1785 – April 3, 1842) was a piano and musical instrument maker in Boston, Massachusetts and Philadelphia, Pennsylvania during the early 19th century. Babcock is best known for patenting a complete iron frame in a ...
,Isacoff (2012, 74) combining the metal hitch pin plate (1821, claimed by Broadwood on behalf of Samuel Hervé) and resisting bars (Thom and Allen, 1820, but also claimed by Broadwood and Érard). Babcock later worked for the Chickering & Mackays firm who patented the first full iron frame for grand pianos in 1843. Composite forged metal frames were preferred by many European makers until the American system was fully adopted by the early 20th century. The increased structural integrity of the iron frame allowed the use of thicker, tenser, and more numerous strings. In 1834, the Webster & Horsfal firm of
Birmingham Birmingham ( ) is a city and metropolitan borough in the metropolitan county of West Midlands in England. It is the second-largest city in the United Kingdom with a population of 1.145 million in the city proper, 2.92 million in the West ...
brought out a form of piano wire made from
cast steel Steel casting is a specialized form of casting involving various types of steel cast to either final/net or near-net shape. Steel castings are used when iron castings cannot deliver enough strength or shock resistance.Oberg, p. 1332 Examples ...
; it was "so superior to the iron wire that the English firm soon had a monopoly."Dolge (1911, 124) But a better steel wire was soon created in 1840 by the
Viennese Viennese may refer to: * Vienna, the capital of Austria * Viennese people, List of people from Vienna * Viennese German, the German dialect spoken in Vienna * Music of Vienna, musical styles in the city * Viennese Waltz, genre of ballroom dance * ...
firm of Martin Miller, and a period of innovation and intense competition ensued, with rival brands of piano wire being tested against one another at international competitions, leading ultimately to the modern form of piano wire. Several important advances included changes to the way the piano was strung. The use of a "choir" of three strings, rather than two for all but the lowest notes, enhanced the richness and complexity of the treble. The use of a Capo d’Astro bar instead of agraffes in the uppermost treble allowed the hammers to strike the strings in their optimal position, greatly increasing that area's power. The implementation of over-stringing (also called cross-stringing), in which the strings are placed in two separate planes, each with its own bridge height, allowed greater length to the bass strings and optimized the transition from unwound tenor strings to the iron or copper-wound bass strings. Over-stringing was invented by Pape during the 1820s, and first patented for use in grand pianos in the United States by Henry Steinway Jr. in 1859. Some piano makers added variations to enhance the tone of each note, such as
Pascal Taskin Pascal-Joseph Taskin (27 July 1723 – 9 February 1793) was a Belgium-born French harpsichord and piano maker. Biography Pascal Taskin, born in Theux near Liège, but worked in Paris for most of his life. Upon his arrival in Paris, he apprentice ...
(1788), Collard & Collard (1821), and
Julius Blüthner Julius Ferdinand Blüthner (11 March 1824 - 13 April 1910) was a German piano maker and founder of the Blüthner piano factory. Biography Blüthner was born in Falkenhain (now Meuselwitz), Thuringia. In 1853 he founded a piano-manufacturing c ...
, who developed
Aliquot stringing Aliquot stringing is the use of extra, un-struck strings in the piano for the purpose of enriching the tone. Aliquot systems use an additional (hence fourth) string in each note of the top three piano octaves. This string is positioned slightly ab ...
in 1893. These systems were used to strengthen the tone of the highest register of notes on the piano, which up until this time were viewed as being too weak-sounding. Each used more distinctly ringing, undamped vibrations of sympathetically vibrating strings to add to the tone, except the Blüthner
Aliquot stringing Aliquot stringing is the use of extra, un-struck strings in the piano for the purpose of enriching the tone. Aliquot systems use an additional (hence fourth) string in each note of the top three piano octaves. This string is positioned slightly ab ...
, which uses an additional fourth string in the upper two treble sections. While the hitchpins of these separately suspended Aliquot strings are raised slightly above the level of the usual tri-choir strings, they are not struck by the hammers but rather are damped by attachments of the usual dampers. Eager to copy these effects, Theodore Steinway invented ''duplex scaling'', which used short lengths of non-speaking wire bridged by the "aliquot" throughout much of the upper range of the piano, always in locations that caused them to vibrate sympathetically in conformity with their respective overtones—typically in doubled octaves and twelfths.


Variations in shape and design

Some early pianos had shapes and designs that are no longer in use. The
square piano The square piano is a type of piano that has horizontal strings arranged diagonally across the rectangular case above the hammers and with the keyboard set in the long side, with the sounding board above a cavity in the short side. It is variously ...
(not truly square, but rectangular) was cross strung at an extremely acute angle above the hammers, with the keyboard set along the long side. This design is attributed to Christian Ernst Friderici, a pupil of Gottfried Silbermann, in Germany, and
Johannes Zumpe Johannes (Johann Christoph) Zumpe (pronounced ''zumpy''; 14 June 1726 in Fürth, Free Imperial City of Nuremberg, modern Germany – buried 5 December 1790 in London, UK) was a leading maker of early English square pianos, a form of rectangula ...
in England, and it was improved by changes first introduced by
Guillaume-Lebrecht Petzold Guillaume-Lebrecht Petzold was a piano maker in Paris in the early 19th century. Petzold was born 2 July 1794 in Lichtenhayn, a village in Saxony near Meißen. His father, a Protestant minister, wanted him to learn an artistic trade and in April 17 ...
in France and
Alpheus Babcock Alpheus Babcock (September 11, 1785 – April 3, 1842) was a piano and musical instrument maker in Boston, Massachusetts and Philadelphia, Pennsylvania during the early 19th century. Babcock is best known for patenting a complete iron frame in a ...
in the United States. Square pianos were built in great numbers through the 1840s in Europe and the 1890s in the United States, and saw the most visible change of any type of piano: the iron-framed, over-strung squares manufactured by Steinway & Sons were more than two-and-a-half times the size of Zumpe's wood-framed instruments from a century before. Their overwhelming popularity was due to inexpensive construction and price, although their tone and performance were limited by narrow soundboards, simple actions and string spacing that made proper hammer alignment difficult. The tall, vertically strung upright grand was arranged like a grand set on end, with the soundboard and bridges above the keys, and tuning pins below them. "Giraffe pianos", "pyramid pianos" and "lyre pianos" were arranged in a somewhat similar fashion, using evocatively shaped cases. The very tall cabinet piano was introduced about 1805 and was built through the 1840s. It had strings arranged vertically on a continuous frame with bridges extended nearly to the floor, behind the keyboard and very large ''sticker action''. The short cottage upright or ''pianino'' with vertical stringing, made popular by
Robert Wornum Robert Wornum (1780–1852) was a piano maker working in London during the first half of the 19th century. He is best known for introducing small cottage and oblique uprights and an action considered to be the predecessor of the modern upright ac ...
around 1815, was built into the 20th century. They are informally called ''birdcage pianos'' because of their prominent damper mechanism. The oblique upright, popularized in France by Roller & Blanchet during the late 1820s, was diagonally strung throughout its compass. The tiny spinet upright was manufactured from the mid-1930s until recent times. The low position of the hammers required the use of a "drop action" to preserve a reasonable keyboard height. Modern upright and grand pianos attained their present, 2000-era forms by the end of the 19th century. While improvements have been made in manufacturing processes, and many individual details of the instrument continue to receive attention, and a small number of acoustic pianos in the 2010s are produced with MIDI recording and digital
sound module A sound module is an electronic musical instrument without a human-playable interface such as a piano-style musical keyboard. Sound modules have to be operated using an externally connected device, which is often a MIDI controller, of which the ...
-triggering capabilities, the 19th century was the era of the most dramatic innovations and modifications of the instrument.


Types

Modern pianos have two basic configurations, the grand piano and the upright piano, with various styles of each. There are also specialized and novelty pianos, electric pianos based on electromechanical designs, electronic pianos that synthesize piano-like tones using oscillators, and digital pianos using
digital sample In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave to a sequence of "samples". A sample is a value of the signal at a point in time and/or spa ...
s of acoustic piano sounds.


Grand

In grand pianos the frame and strings are horizontal, with the strings extending away from the keyboard. The action lies beneath the strings, and uses gravity as its means of return to a state of rest. Grand pianos range in length from approximately to . Some of the lengths have been given more-or-less customary names, which vary from time to time and place to place, but might include: * Baby grand – around * Parlor grand or boudoir grand – * Concert grand – between ) All else being equal, longer pianos with longer strings have larger, richer sound and lower inharmonicity of the strings. Inharmonicity is the degree to which the frequencies of
overtone An overtone is any resonant frequency above the fundamental frequency of a sound. (An overtone may or may not be a harmonic) In other words, overtones are all pitches higher than the lowest pitch within an individual sound; the fundamental i ...
s (known as partials or
harmonic A harmonic is a wave with a frequency that is a positive integer multiple of the '' fundamental frequency'', the frequency of the original periodic signal, such as a sinusoidal wave. The original signal is also called the ''1st harmonic'', the ...
s) sound
sharp Sharp or SHARP may refer to: Acronyms * SHARP (helmet ratings) (Safety Helmet Assessment and Rating Programme), a British motorcycle helmet safety rating scheme * Self Help Addiction Recovery Program, a charitable organisation founded in 199 ...
relative to whole multiples of the fundamental frequency. This results from the piano's considerable string stiffness; as a struck string decays its harmonics vibrate, not from their termination, but from a point very slightly toward the center (or more flexible part) of the string. The higher the partial, the further sharp it runs. Pianos with shorter and thicker string (i.e., small pianos with short string scales) have more inharmonicity. The greater the inharmonicity, the more the ear perceives it as harshness of tone. The inharmonicity of piano strings requires that octaves be '' stretched,'' or tuned to a lower octave's corresponding sharp overtone rather than to a theoretically correct octave. If octaves are not stretched, single octaves sound in tune, but double—and notably triple—octaves are unacceptably narrow. Stretching a small piano's octaves to match its inherent inharmonicity level creates an imbalance among all the instrument's intervallic relationships. In a concert grand, however, the octave "stretch" retains harmonic balance, even when aligning treble notes to a harmonic produced from three octaves below. This lets close and widespread octaves sound pure, and produces virtually beatless
perfect fifth In music theory, a perfect fifth is the musical interval corresponding to a pair of pitches with a frequency ratio of 3:2, or very nearly so. In classical music from Western culture, a fifth is the interval from the first to the last of five ...
s. This gives the concert grand a brilliant, singing and sustaining tone quality—one of the principal reasons that full-size grands are used in the concert hall. Smaller grands satisfy the space and cost needs of domestic use; as well, they are used in some small teaching studios and smaller performance venues.


Upright

Upright pianos, also called vertical pianos, are more compact due to the vertical structure of the frame and strings. The mechanical action structure of the upright piano was invented in London, England in 1826 by
Robert Wornum Robert Wornum (1780–1852) was a piano maker working in London during the first half of the 19th century. He is best known for introducing small cottage and oblique uprights and an action considered to be the predecessor of the modern upright ac ...
, and upright models became the most popular model for domestic use. Upright pianos took less space than a grand piano, and as such they were a better size for use in private homes for domestic music-making and practice. The hammers move horizontally, and return to their resting position via springs, which are susceptible to degradation. Upright pianos with unusually tall frames and long strings were sometimes marketed as ''upright grand'' pianos, but that label is misleading. Some authors classify modern pianos according to their height and to modifications of the action that are necessary to accommodate the height. Upright pianos are generally less expensive than grand pianos. Upright pianos are widely used in churches,
community center Community centres, community centers, or community halls are public locations where members of a community tend to gather for group activities, social support, public information, and other purposes. They may sometimes be open for the whole c ...
s, schools, music conservatories and university music programs as rehearsal and practice instruments, and they are popular models for in-home purchase. * The top of a spinet model barely rises above the keyboard. Unlike all other pianos, the spinet action is located below the keys, operated by vertical wires that are attached to the backs of the keys. * Console pianos, which have a compact action (shorter hammers than a large upright has), but because the console's action is above the keys rather than below them as in a spinet, a console almost always plays better than a spinet does. Console pianos are a few inches shorter than studio models. * Studio pianos are around tall. This is the shortest cabinet that can accommodate a full-sized action located above the keyboard. * Anything taller than a studio piano is called an upright. (Technically, any piano with a vertically oriented soundboard could be called an upright, but that word is often reserved for the full-size models.)


Specialized

The
toy piano The toy piano, also known as the ''kinderklavier'' (child's keyboard), is a small piano-like musical instrument. Most modern toy pianos use round metal rods, as opposed to strings in a regular piano, to produce sound. The U.S. Library of Congress ...
, introduced in the 19th century, is a small piano-like instrument, that generally uses round metal rods to produce sound, rather than strings. The US Library of Congress recognizes the toy piano as a unique instrument with the subject designation, Toy Piano Scores: M175 T69. In 1863, Henri Fourneaux invented the
player piano A player piano (also known as a pianola) is a self-playing piano containing a pneumatic or electro-mechanical mechanism, that operates the piano action via programmed music recorded on perforated paper or metallic rolls, with more modern i ...
, which plays itself from a piano roll. A machine perforates a performance recording into rolls of paper, and the player piano replays the performance using pneumatic devices. Modern equivalents of the player piano include the
Bösendorfer Bösendorfer (L. Bösendorfer Klavierfabrik GmbH) is an Austrian piano manufacturer and, since 2008, a wholly owned subsidiary of Yamaha Corporation. Bösendorfer is unusual in that it produces 97- and 92- key models in addition to instrumen ...
CEUS,
Yamaha Disklavier Disklavier is a brand of reproducing pianos manufactured by Yamaha Corporation. The first Disklavier was introduced in the United States in 1987. The typical Disklavier is a real acoustic piano outfitted with electronic sensors for recording and ...
and QRS Pianomation, using solenoids and MIDI rather than pneumatics and rolls. A
silent piano A silent piano is an acoustic piano where there is an option to silence the strings by stopping the hammers from striking them. A silent piano is designed for private silent practice. In the silent mode, sensors pick up the piano key movement, con ...
is an acoustic piano having an option to silence the strings by means of an interposing hammer bar. They are designed for private silent practice, to avoid disturbing others. Edward Ryley invented the
transposing piano A transposing piano is a special piano with a mechanism (operated by a pedal or lever) that changes the keyboard position relative to the ''action'' (see '' Development of the modern piano'' for details). This ''transposes'' (changes the key of) a ...
in 1801. This rare instrument has a lever under the keyboard to move the keyboard relative to the strings, so a pianist can play in a familiar key while the music sounds in a different key. The minipiano is an instrument patented by the Brasted brothers of the Eavestaff Ltd. piano company in 1934. This instrument has a braceless back and a soundboard positioned below the keys—long metal rods pull on the levers to make the hammers strike the strings. The first model, known as the ''Pianette'', was unique in that the tuning pins extended through the instrument, so it could be tuned at the front. The
prepared piano A prepared piano is a piano that has had its sounds temporarily altered by placing bolts, screws, mutes, rubber erasers, and/or other objects on or between the strings. Its invention is usually traced to John Cage's dance music for '' Bacchanale ...
, present in some contemporary art music from the 20th and 21st century is a piano which has objects placed inside it to alter its sound, or has had its mechanism changed in some other way. The scores for music for prepared piano specify the modifications, for example, instructing the pianist to insert pieces of rubber, paper, metal screws, or washers in between the strings. These objects mute the strings or alter their timbre. The pedal piano is a rare type of piano that has a pedal keyboard at the base, designed to be played by the feet. The pedals may play the existing bass strings on the piano, or rarely, the pedals may have their own set of bass strings and hammer mechanisms. While the typical intended use for pedal pianos is to enable a keyboardist to practice
pipe organ The pipe organ is a musical instrument that produces sound by driving pressurized air (called ''wind'') through the organ pipes selected from a keyboard. Because each pipe produces a single pitch, the pipes are provided in sets called ''ranks' ...
music at home, a few players of pedal piano use it as a performance instrument.
Wadia Sabra Wadia (Wadih) Sabra ( ar, وديع صبرا ; 23 February 1876 – 11 April 1952) was a Lebanese composer and founder of the Conservatoire Libanais. Life Wadia (Wadih) Sabra was born in 1876 in the village of Ain el Jdideh and died in Beir ...
had a microtone piano manufactured by Pleyel in 1920.
Abdallah Chahine Abdallah Chahine ( ar, عبد الله شاهين; 1894–1975) was a Lebanese pianist and tuner-technician who devised an " Oriental piano" capable of playing quarter tones. Abdallah Chahine constructed his Oriental piano with the help of Austri ...
later constructed his quartertone "Oriental piano" with the help of Austrian Hofmann.


Electric, electronic, and digital

With technological advances, amplified electric pianos (1929), electronic pianos (1970s), and digital pianos (1980s) have been developed. The electric piano became a popular instrument in the 1960s and 1970s genres of jazz fusion, funk music and rock music. The first electric pianos from the late 1920s used metal strings with a
magnetic pickup A pickup is a transducer that captures or senses mechanical vibrations produced by musical instruments, particularly stringed instruments such as the electric guitar, and converts these to an electrical signal that is amplified using an instru ...
, an
amplifier An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It may increase the power significantly, or its main effect may be to boost the v ...
and a loudspeaker. The electric pianos that became most popular in
pop Pop or POP may refer to: Arts, entertainment, and media Music * Pop music, a musical genre Artists * POP, a Japanese idol group now known as Gang Parade * Pop!, a UK pop group * Pop! featuring Angie Hart, an Australian band Albums * ''Pop'' ( ...
and rock music in the 1960s and 1970s, such as the
Fender Rhodes The Rhodes piano (also known as the Fender Rhodes piano) is an electric piano invented by Harold Rhodes, which became popular in the 1970s. Like a conventional piano, the Rhodes generates sound with keys and hammers, but instead of strings, th ...
use metal tines in place of strings and use electromagnetic pickups similar to those on an electric guitar. The resulting electrical, analogue signal can then be amplified with a keyboard amplifier or electronically manipulated with
effects unit An effects unit or effects pedal is an electronic device that alters the sound of a musical instrument or other audio source through audio signal processing. Common effects include distortion/overdrive, often used with electric guitar in ele ...
s. In classical music, electric pianos are mainly used as inexpensive rehearsal or practice instruments. However, electric pianos, particularly the
Fender Rhodes The Rhodes piano (also known as the Fender Rhodes piano) is an electric piano invented by Harold Rhodes, which became popular in the 1970s. Like a conventional piano, the Rhodes generates sound with keys and hammers, but instead of strings, th ...
, became important instruments in 1970s
funk Funk is a music genre that originated in African American communities in the mid-1960s when musicians created a rhythmic, danceable new form of music through a mixture of various music genres that were popular among African Americans in the mid ...
and jazz fusion and in some rock music genres. Electronic pianos are non-acoustic; they do not have strings, tines or hammers, but are a type of analog synthesizer that simulates or imitates piano sounds using oscillators and filters that synthesize the sound of an acoustic piano. They must be connected to a keyboard amplifier and speaker to produce sound (however, some electronic keyboards have a built-in amp and speaker). Alternatively, a person can play an electronic piano with headphones in quieter settings. Digital pianos are also non-acoustic and do not have strings or hammers. They use digital audio sampling technology to reproduce the acoustic sound of each piano note accurately. They also must be connected to a
power amplifier An audio power amplifier (or power amp) is an electronic amplifier that amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspea ...
and speaker to produce sound (however, most digital pianos have a built-in amp and speaker). Alternatively, a person can practise with headphones to avoid disturbing others. Digital pianos can include sustain pedals, weighted or semi-weighted keys, multiple voice options (e.g., sampled or synthesized imitations of electric piano, Hammond organ, violin, etc.), and MIDI interfaces. MIDI inputs and outputs connect a digital piano to other electronic instruments or musical devices. For example, a digital piano's MIDI out signal could be connected by a patch cord to a synth module, which would allow the performer to use the keyboard of the digital piano to play modern synthesizer sounds. Early digital pianos tended to lack a full set of
pedals A pedal (from the Latin '' pes'' ''pedis'', "foot") is a lever designed to be operated by foot and may refer to: Computers and other equipment * Footmouse, a foot-operated computer mouse * In medical transcription, a pedal is used to control ...
but the synthesis software of later models such as the Yamaha Clavinova series synthesised the
sympathetic vibration Sympathetic resonance or sympathetic vibration is a harmonic phenomenon wherein a passive string or vibratory body responds to external vibrations to which it has a harmonic likeness. The classic example is demonstrated with two similarly-tuned ...
of the other strings (such as when the sustain pedal is depressed) and full pedal sets can now be replicated. The processing power of digital pianos has enabled highly realistic pianos using multi-gigabyte piano sample sets with as many as ninety recordings, each lasting many seconds, for each key under different conditions (e.g., there are samples of each note being struck softly, loudly, with a sharp attack, etc.). Additional samples emulate sympathetic resonance of the strings when the sustain pedal is depressed, key release, the drop of the dampers, and simulations of techniques such as re-pedalling. Digital, MIDI-equipped pianos can output a stream of MIDI data, or record and play via a
CD ROM A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data. Computers can read—but not write or erase—CD-ROMs. Some CDs, called enhanced CDs, hold both compute ...
or
USB flash drive A USB flash drive (also called a thumb drive) is a data storage device that includes flash memory with an integrated USB interface. It is typically removable, rewritable and much smaller than an optical disc. Most weigh less than . Since first ...
using MIDI format files, similar in concept to a pianola. The MIDI file records the physics of a note rather than its resulting sound and recreates the sounds from its physical properties (e.g., which note was struck and with what velocity). Computer based software, such as Modartt's 2006 Pianoteq, can be used to manipulate the MIDI stream in real time or subsequently to edit it. This type of software may use no samples but synthesize a sound based on aspects of the physics that went into the creation of a played note.


Hybrid instruments

In the 2000s, some pianos include an acoustic grand piano or upright piano combined with MIDI electronic features. Such a piano can be played acoustically, or the keyboard can be used as a MIDI controller, which can trigger a synthesizer module or
music sampler In sound and music, sampling is the reuse of a portion (or sample) of a sound recording in another recording. Samples may comprise elements such as rhythm, melody, speech, sounds or entire bars of music, and may be layered, equalized, sped up or ...
. Some electronic feature-equipped pianos such as the Yamaha Disklavier electronic player piano, introduced in 1987, are outfitted with electronic sensors for recording and electromechanical solenoids for player piano-style playback. Sensors record the movements of the keys, hammers, and pedals during a performance, and the system saves the performance data as a Standard MIDI File (SMF). On playback, the solenoids move the keys and pedals and thus reproduce the original performance. Modern Disklaviers typically include an array of electronic features, such as a built-in tone generator for playing back MIDI accompaniment tracks, speakers, MIDI connectivity that supports communication with computing devices and external MIDI instruments, additional ports for audio and SMPTE input/output (I/O), and Internet connectivity. Disklaviers have been manufactured in the form of upright, baby grand, and grand piano styles (including a nine-foot concert grand). Reproducing systems have ranged from relatively simple, playback-only models to professional models that can record performance data at resolutions that exceed the limits of normal MIDI data. The unit mounted under the keyboard of the piano can play MIDI or audio software on its CD.


Construction and components

Pianos can have over 12,000 individual parts, supporting six functional features: keyboard, hammers, dampers, bridge, soundboard, and strings. Many parts of a piano are made of materials selected for strength and longevity. This is especially true of the outer rim. It is most commonly made of hardwood, typically hard maple or
beech Beech (''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, ''Engleriana'' and ''Fagus''. The ''Engle ...
, and its massiveness serves as an essentially immobile object from which the flexible soundboard can best vibrate. According to Harold A. Conklin, the purpose of a sturdy rim is so that, "... the vibrational energy will stay as much as possible in the soundboard instead of dissipating uselessly in the case parts, which are inefficient radiators of sound." Hardwood rims are commonly made by laminating thin, hence flexible, strips of hardwood, bending them to the desired shape immediately after the application of glue. The bent plywood system was developed by
C.F. Theodore Steinway Christian Friedrich Theodor Steinweg, anglicized name C.F. Theodore Steinway (November 6, 1825 – March 26, 1889), was a piano maker. He was the eldest son of the famous piano maker and piano company founder, Henry E. Steinway. Life He w ...
in 1880 to reduce manufacturing time and costs. Previously, the rim was constructed from several pieces of solid wood, joined and veneered, and European makers used this method well into the 20th century. A modern exception,
Bösendorfer Bösendorfer (L. Bösendorfer Klavierfabrik GmbH) is an Austrian piano manufacturer and, since 2008, a wholly owned subsidiary of Yamaha Corporation. Bösendorfer is unusual in that it produces 97- and 92- key models in addition to instrumen ...
, the Austrian manufacturer of high-quality pianos, constructs their inner rims from solid spruce, the same wood that the soundboard is made from, which is notched to allow it to bend; rather than isolating the rim from vibration, their "resonance case principle" allows the framework to resonate more freely with the soundboard, creating additional coloration and complexity of the overall sound. The thick wooden posts on the underside (grands) or back (uprights) of the piano stabilize the rim structure, and are made of softwood for stability. The requirement of structural strength, fulfilled by stout hardwood and thick metal, makes a piano heavy. Even a small upright can weigh , and the
Steinway Steinway & Sons, also known as Steinway (), is a German-American piano company, founded in 1853 in Manhattan by German piano builder Heinrich Engelhard Steinweg (later known as Henry E. Steinway). The company's growth led to the opening of a ...
concert grand (Model D) weighs . The largest piano available on the general market, the
Fazioli Fazioli Pianoforti (), translated as Fazioli Pianos, produces grand and concert pianos from their factory in Sacile, Italy. The company was founded by engineer and pianist Paolo Fazioli in 1981. The craftsmen at Fazioli build 140 pianos a year. ...
F308, weighs ."Fazioli, Paolo"
''Grove Music Online'', 2009. Accessed 12 April 2009.
"Model F308"
, ''Official Fazioli Website''. Accessed 6 March 2015.
The pinblock, which holds the tuning pins in place, is another area where toughness is important. It is made of hardwood (typically hard maple or beech), and is laminated for strength, stability and longevity. Piano strings (also called
piano wire Piano wire, or "music wire", is a specialized type of wire made for use in piano strings but also in other applications as springs. It is made from tempered high-carbon steel, also known as spring steel, which replaced iron as the material ...
), which must endure years of extreme tension and hard blows, are made of high carbon steel. They are manufactured to vary as little as possible in diameter, since all deviations from uniformity introduce tonal distortion. The bass strings of a piano are made of a steel core wrapped with copper wire, to increase their mass whilst retaining flexibility. If all strings throughout the piano's compass were individual (monochord), the massive bass strings would overpower the upper ranges. Makers compensate for this with the use of double (bichord) strings in the tenor and triple (trichord) strings throughout the treble. The plate (harp), or metal frame, of a piano is usually made of
cast iron Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impuriti ...
. A massive plate is advantageous. Since the strings vibrate from the plate at both ends, an insufficiently massive plate would absorb too much of the vibrational energy that should go through the bridge to the soundboard. While some manufacturers use cast steel in their plates, most prefer cast iron. Cast iron is easy to cast and machine, has flexibility sufficient for piano use, is much more resistant to deformation than steel, and is especially tolerant of compression. Plate casting is an art, since dimensions are crucial and the iron shrinks about one percent during cooling. Including an extremely large piece of metal in a piano is potentially an aesthetic handicap. Piano makers overcome this by polishing, painting, and decorating the plate. Plates often include the manufacturer's ornamental medallion. In an effort to make pianos lighter,
Alcoa Alcoa Corporation (an acronym for Aluminum Company of America) is a Pittsburgh-based industrial corporation. It is the world's eighth-largest producer of aluminum. Alcoa conducts operations in 10 countries. Alcoa is a major producer of primary ...
worked with Winter and Company piano manufacturers to make pianos using an aluminum plate during the 1940s. Aluminum piano plates were not widely accepted, and were discontinued. The numerous parts of a piano action are generally made from hardwood, such as
maple ''Acer'' () is a genus of trees and shrubs commonly known as maples. The genus is placed in the family Sapindaceae.Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008 nd more or less continuously updated since http ...
,
beech Beech (''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, ''Engleriana'' and ''Fagus''. The ''Engle ...
, and
hornbeam Hornbeams are hardwood trees in the flowering plant genus ''Carpinus'' in the birch family Betulaceae. The 30–40 species occur across much of the temperate regions of the Northern Hemisphere. Origin of names The common English name ''hornbeam ...
; however, since World War II, makers have also incorporated plastics. Early plastics used in some pianos in the late 1940s and 1950s, proved disastrous when they lost strength after a few decades of use. Beginning in 1961, the
New York New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northeastern United States New York may also refer to: Film and television * ...
branch of the Steinway firm incorporated Teflon, a synthetic material developed by DuPont, for some parts of its Permafree grand action in place of cloth bushings, but abandoned the experiment in 1982 due to excessive friction and a "clicking" that developed over time; Teflon is "humidity stable" whereas the wood adjacent to the Teflon swells and shrinks with humidity changes, causing problems. More recently, the
Kawai is a musical instrument manufacturing company headquartered in Hamamatsu, Shizuoka, Japan. It is best known for its grand pianos, upright pianos, digital pianos, electronic keyboards and electronic synthesizers. The company was founded in Augu ...
firm built pianos with action parts made of more modern materials such as
carbon fiber reinforced plastic Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon compo ...
, and the piano parts manufacturer Wessell, Nickel and Gross has launched a new line of carefully engineered composite parts. Thus far these parts have performed reasonably, but it will take decades to know if they equal the longevity of wood. In all but the lowest quality pianos the soundboard is made of solid spruce (that is, spruce boards glued together along the side grain). Spruce's high ratio of strength to weight minimizes
acoustic impedance Acoustic impedance and specific acoustic impedance are measures of the opposition that a system presents to the acoustic flow resulting from an acoustic pressure applied to the system. The SI unit of acoustic impedance is the pascal-second per cu ...
while offering strength sufficient to withstand the downward force of the strings. The best piano makers use quarter-sawn, defect-free spruce of close annular grain, carefully seasoning it over a long period before fabricating the soundboards. This is the identical material that is used in quality acoustic guitar soundboards. Cheap pianos often have plywood soundboards. The design of the piano hammers requires having the hammer felt be soft enough so that it will not create loud, very high harmonics that a hard hammer will cause. The hammer must be lightweight enough to move swiftly when a key is pressed; yet at the same time, it must be strong enough so that it can hit strings hard when the player strikes the keys forcefully for fortissimo playing or sforzando accents.


Keyboard

In the early years of piano construction, keys were commonly made from sugar pine. In the 2010s, they are usually made of spruce or
basswood ''Tilia americana'' is a species of tree in the family Malvaceae, native to eastern North America, from southeast Manitoba east to New Brunswick, southwest to northeast Oklahoma, southeast to South Carolina, and west along the Niobrara River to ...
. Spruce is typically used in high-quality pianos. Black keys were traditionally made of ebony, and the white keys were covered with strips of ivory. However, since ivory-yielding species are now endangered and protected by treaty, or are illegal in some countries, makers use plastics almost exclusively. Also, ivory tends to chip more easily than plastic. Legal ivory can still be obtained in limited quantities.
Yamaha Yamaha may refer to: * Yamaha Corporation, a Japanese company with a wide range of products and services, established in 1887. The company is the largest shareholder of Yamaha Motor Company (below). ** Yamaha Music Foundation, an organization esta ...
developed a plastic called ''Ivorite'' intended to mimic the look and feel of ivory; other manufacturers have done likewise. Almost every modern piano has 52 white keys and 36 black keys for a total of 88 keys (seven octaves plus a minor third, from A0 to C8). Many older pianos only have 85 keys (seven octaves from A0 to A7). Some piano manufacturers have extended the range further in one or both directions. For example, the
Imperial Bösendorfer The Bösendorfer Model 290 Imperial, or Imperial Bösendorfer (also colloquially known as the 290) is the largest model and flagship piano manufactured by Bösendorfer, at around long, wide, and weighing . It has an eight-octave range from C0 to ...
has nine extra keys at the bass end, giving a total of 97 keys and an eight octave range. These extra keys are sometimes hidden under a small hinged lid that can cover the keys to prevent visual disorientation for pianists unfamiliar with the extra keys, or the colours of the extra white keys are reversed (black instead of white). More recently, Australian manufacturer Stuart & Sons created a piano with 108 keys, going from C0 to B8, covering nine full octaves. The extra keys are the same as the other keys in appearance. The extra keys are added primarily for increased resonance from the associated strings; that is, they vibrate sympathetically with other strings whenever the damper pedal is depressed and thus give a fuller tone. Only a very small number of works composed for piano actually use these notes.
Toy piano The toy piano, also known as the ''kinderklavier'' (child's keyboard), is a small piano-like musical instrument. Most modern toy pianos use round metal rods, as opposed to strings in a regular piano, to produce sound. The U.S. Library of Congress ...
company Schoenhut manufactures grands and uprights with only 44 or 49 keys and a shorter distance between the keyboard and the pedals. These are true pianos with working mechanisms and strings. A rare variant of the piano called the ''Emánuel Moór Pianoforte'' has double keyboards, one lying above the other. It was invented by Hungarian composer and pianist,
Emánuel Moór Emánuel Moór (; 19 February 1863 – 20 October 1931) was a Hungarian composer, pianist, and inventor of musical instruments. Moór was born in Kecskemét, Hungary, and studied in Prague, Vienna and Budapest. Between 1885 and 1897 he tour ...
(19 February 1863 – 20 October 1931). The lower keyboard has the usual 88 keys, whilst the upper keyboard has 76 keys. When the upper keyboard is played, an internal mechanism pulls down the corresponding key on the lower keyboard, but an octave higher. This lets a pianist reach two octaves with one hand, impossible on a conventional piano. Due to its double keyboard, musical works that were originally created for double-manual harpsichord, such as the '' Goldberg Variations'' by
Bach Johann Sebastian Bach (28 July 1750) was a German composer and musician of the late Baroque period. He is known for his orchestral music such as the ''Brandenburg Concertos''; instrumental compositions such as the Cello Suites; keyboard wo ...
, become much easier to play, since playing on a conventional single keyboard piano involves complex and hand-tangling cross-hand movements. The design also features a special fourth pedal that couples the lower and upper keyboard, so when playing on the lower keyboard the note one octave higher also plays. Only about 60 Emánuel Moór Pianofortes were made, mostly by
Bösendorfer Bösendorfer (L. Bösendorfer Klavierfabrik GmbH) is an Austrian piano manufacturer and, since 2008, a wholly owned subsidiary of Yamaha Corporation. Bösendorfer is unusual in that it produces 97- and 92- key models in addition to instrumen ...
. Other piano manufacturers, such as Bechstein, Chickering, and Steinway & Sons, also manufactured a few. Pianos have been built with alternative keyboard systems, e.g., the
Jankó keyboard The Jankó keyboard is a musical keyboard layout for a piano designed by Paul von Jankó, a Hungarian pianist and engineer, in 1882. It was designed to overcome two limitations on the traditional piano keyboard: the large-scale geometry of the k ...
.


Pedals

Pianos have had pedals, or some close equivalent, since the earliest days. (In the 18th century, some pianos used levers pressed upward by the player's knee instead of pedals.) Most grand pianos in the US have three pedals: the
soft pedal The soft pedal (or pedal, ) is one of the standard pedals on a piano, generally placed leftmost among the pedals. On a grand piano this pedal shifts the whole action (including the keyboard) slightly to the right, so that the hammers which norm ...
(una corda), sostenuto, and sustain pedal (from left to right, respectively), while in Europe, the standard is two pedals: the soft pedal and the sustain pedal. Most modern upright pianos also have three pedals: soft pedal, practice pedal and sustain pedal, though older or cheaper models may lack the practice pedal. In Europe the standard for upright pianos is two pedals: the soft and the sustain pedals. The sustain pedal (or, damper pedal) is often simply called "the pedal", since it is the most frequently used. It is placed as the rightmost pedal in the group. It lifts the dampers from all keys, sustaining all played notes. In addition, it alters the overall tone by allowing all strings, including those not directly played, to reverberate. When all of the other strings on the piano can vibrate, this allows
sympathetic vibration Sympathetic resonance or sympathetic vibration is a harmonic phenomenon wherein a passive string or vibratory body responds to external vibrations to which it has a harmonic likeness. The classic example is demonstrated with two similarly-tuned ...
of strings that are harmonically related to the sounded pitches. For example, if the pianist plays the 440 Hz "A" note, the higher octave "A" notes will also sound sympathetically. The
soft pedal The soft pedal (or pedal, ) is one of the standard pedals on a piano, generally placed leftmost among the pedals. On a grand piano this pedal shifts the whole action (including the keyboard) slightly to the right, so that the hammers which norm ...
or ''una corda'' pedal is placed leftmost in the row of pedals. In grand pianos it shifts the entire action/keyboard assembly to the right (a very few instruments have shifted left) so that the hammers hit two of the three strings for each note. In the earliest pianos whose unisons were bichords rather than trichords, the action shifted so that hammers hit a single string, hence the name ''una corda'', or 'one string'. The effect is to soften the note as well as change the tone. In uprights this action is not possible; instead the pedal moves the hammers closer to the strings, allowing the hammers to strike with less kinetic energy. This produces a slightly softer sound, but no change in timbre. On grand pianos, the middle pedal is a
sostenuto Piano pedals are foot-operated levers at the base of a piano that change the instrument's sound in various ways. Modern pianos usually have three pedals, from left to right, the soft pedal (or una corda), the sostenuto pedal, and the sustaining ...
pedal. This pedal keeps raised any damper already raised at the moment the pedal is depressed. This makes it possible to sustain selected notes (by depressing the sostenuto pedal before those notes are released) while the player's hands are free to play additional notes (which don't sustain). This can be useful for musical passages with low bass pedal points, in which a bass note is sustained while a series of chords changes over top of it, and other otherwise tricky parts. On many upright pianos, the middle pedal is called the "practice" or ''celeste'' pedal. This drops a piece of felt between the hammers and strings, greatly muting the sounds. This pedal can be shifted while depressed, into a "locking" position. There are also non-standard variants. On some pianos (grands and verticals), the middle pedal can be a bass sustain pedal: that is, when it is depressed, the dampers lift off the strings only in the bass section. Players use this pedal to sustain a single bass note or chord over many measures, while playing the melody in the treble section. The rare
transposing piano A transposing piano is a special piano with a mechanism (operated by a pedal or lever) that changes the keyboard position relative to the ''action'' (see '' Development of the modern piano'' for details). This ''transposes'' (changes the key of) a ...
(an example of which was owned by
Irving Berlin Irving Berlin (born Israel Beilin; yi, ישראל ביילין; May 11, 1888 – September 22, 1989) was a Russian-American composer, songwriter and lyricist. His music forms a large part of the Great American Songbook. Born in Imperial Russi ...
) has a middle pedal that functions as a
clutch A clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft to a driven shaft. In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). ...
that disengages the keyboard from the mechanism, so the player can move the keyboard to the left or right with a lever. This shifts the entire piano action so the pianist can play music written in one key so that it sounds in a different key. Some piano companies have included extra pedals other than the standard two or three. On the
Stuart and Sons Stuart & Sons is an Australian manufacturer of handcrafted grand pianos. The company is based in Tumut in New South Wales. History The company was established by Wayne Stuart in 1990 as ''Stuart & Sons Terra Australis Pty Limited.'' The co ...
pianos as well as the largest
Fazioli Fazioli Pianoforti (), translated as Fazioli Pianos, produces grand and concert pianos from their factory in Sacile, Italy. The company was founded by engineer and pianist Paolo Fazioli in 1981. The craftsmen at Fazioli build 140 pianos a year. ...
piano, there is a fourth pedal to the left of the principal three. This fourth pedal works in the same way as the soft pedal of an upright piano, moving the hammers closer to the strings. The Crown and Schubert Piano Company also produced a four-pedal piano. Wing and Son of New York offered a five-pedal piano from approximately 1893 through the 1920s. There is no mention of the company past the 1930s. Labeled left to right, the pedals are Mandolin, Orchestra, Expression, Soft, and Forte (Sustain). The Orchestral pedal produced a sound similar to a tremolo feel by bouncing a set of small beads dangling against the strings, enabling the piano to mimic a mandolin, guitar, banjo, zither and harp, thus the name Orchestral. The Mandolin pedal used a similar approach, lowering a set of felt strips with metal rings in between the hammers and the strings (aka rinky-tink effect). This extended the life of the hammers when the Orch pedal was used, a good idea for practicing, and created an echo-like sound that mimicked playing in an orchestral hall. The ''pedalier'' piano, or pedal piano, is a rare type of piano that includes a pedalboard so players can use their feet to play bass register notes, as on an organ. There are two types of pedal piano. On one, the pedal board is an integral part of the instrument, using the same strings and mechanism as the manual keyboard. The other, rarer type, consists of two independent pianos (each with separate mechanics and strings) placed one above the other—one for the hands and one for the feet. This was developed primarily as a practice instrument for organists, though there is a small repertoire written specifically for the instrument.


Mechanics

When the key is struck, a chain reaction occurs to produce the sound. First, the key raises the "wippen" mechanism, which forces the jack against the hammer roller (or ''knuckle''). The hammer roller then lifts the lever carrying the hammer. The key also raises the damper; and immediately after the hammer strikes the wire it falls back, allowing the wire to resonate and thus produce sound. When the key is released the damper falls back onto the strings, stopping the wire from vibrating, and thus stopping the sound. The vibrating piano strings themselves are not very loud, but their vibrations are transmitted to a large soundboard that moves air and thus converts the energy to sound. The irregular shape and off-center placement of the bridge ensure that the soundboard vibrates strongly at all frequencies. The raised damper allows the note to sound until the key (or sustain pedal) is released. There are three factors that influence the pitch of a vibrating wire. * Length: All other factors the same, the shorter the wire, the higher the pitch. * Mass per unit length: All other factors the same, the thinner the wire, the higher the pitch. * Tension: All other factors the same, the tighter the wire, the higher the pitch. A vibrating wire subdivides itself into many parts vibrating at the same time. Each part produces a pitch of its own, called a partial. A vibrating string has one fundamental and a series of partials. The purest combination of two pitches is when one is double the frequency of the other. For a repeating wave, the velocity equals the wavelength times the frequency , : On the piano string, waves reflect from both ends. The superposition of reflecting waves results in a standing wave pattern, but only for wavelengths , where is the length of the string. Therefore, the only frequencies produced on a single string are . Timbre is largely determined by the content of these harmonics. Different instruments have different harmonic content for the same pitch. A real string vibrates at harmonics that are not perfect multiples of the fundamental. This results in a little inharmonicity, which gives richness to the tone but causes significant tuning challenges throughout the compass of the instrument. Striking the piano key with greater velocity increases the amplitude of the waves and therefore the volume. From ''pianissimo'' () to ''fortissimo'' () the hammer velocity changes by almost a factor of a hundred. The hammer contact time with the string shortens from 4 milliseconds at to less than 2 ms at . If two wires adjusted to the same pitch are struck at the same time, the sound produced by one reinforces the other, and a louder combined sound of shorter duration is produced. If one wire vibrates out of synchronization with the other, they subtract from each other and produce a softer tone of longer duration.


Maintenance

Pianos are heavy and powerful, yet delicate instruments. Over the years, professional piano movers have developed special techniques for transporting both grands and uprights, which prevent damage to the case and to the piano's mechanical elements. Pianos need regular tuning to keep them on correct pitch. The hammers of pianos are voiced to compensate for gradual hardening of the felt, and other parts also need periodic regulation. Pianos need regular maintenance to ensure the felt hammers and key mechanisms are functioning properly. Aged and worn pianos can be rebuilt or reconditioned by piano rebuilders. Strings eventually must be replaced. Often, by replacing a great number of their parts, and adjusting them, old instruments can perform as well as new pianos. Piano tuning involves adjusting the tensions of the piano's strings with a specialized wrench, thereby aligning the intervals among their tones so that the instrument is in tune. While guitar and violin players tune their own instruments, pianists usually hire a
piano tuner Piano tuning is the act of adjusting the tension of the strings of an acoustic piano so that the musical intervals between strings are in tune. The meaning of the term 'in tune', in the context of piano tuning, is not simply a particular fixed s ...
, a specialized technician, to tune their pianos. The piano tuner uses special tools. The meaning of the term ''in tune'' in the context of piano tuning is not simply a particular fixed set of pitches. Fine piano tuning carefully assesses the interaction among all notes of the chromatic scale, different for every piano, and thus requires slightly different pitches from any theoretical standard. Pianos are usually tuned to a modified version of the system called equal temperament (see
Piano key frequencies This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th key, the fifth A (called A4), tuned to 440 Hz (referr ...
for the theoretical piano tuning). In all systems of tuning, each pitch is derived from its relationship to a chosen fixed pitch, usually the internationally recognized standard concert pitch of A4 (the A above middle C). The term
A440 A440 or A-440 may refer to: * A440 (pitch standard) * A440 highway (Australia), a road in Victoria, Australia * Quebec Autoroute 440 (Laval) * Quebec Autoroute 440 (Quebec City) See also * Apollo 440, an English band * Airbus A400M The Airb ...
refers to a widely accepted frequency of this pitch – 440 Hz. The relationship between two pitches, called an interval, is the ratio of their absolute frequencies. Two different intervals are perceived as the same when the pairs of pitches involved share the same frequency ratio. The easiest intervals to identify, and the easiest intervals to tune, are those that are
just Just or JUST may refer to: __NOTOC__ People * Just (surname) * Just (given name) Arts and entertainment * ''Just'', a 1998 album by Dave Lindholm * "Just" (song), a song by Radiohead * "Just", a song from the album '' Lost and Found'' by Mudvayn ...
, meaning they have a simple whole-number ratio. The term '' temperament'' refers to a tuning system that tempers the just intervals (usually the
perfect fifth In music theory, a perfect fifth is the musical interval corresponding to a pair of pitches with a frequency ratio of 3:2, or very nearly so. In classical music from Western culture, a fifth is the interval from the first to the last of five ...
, which has the ratio 3:2) to satisfy another mathematical property; in equal temperament, a fifth is tempered by narrowing it slightly, achieved by flattening its upper pitch slightly, or raising its lower pitch slightly. A temperament system is also known as a set of "bearings". Tempering an interval causes it to
beat Beat, beats or beating may refer to: Common uses * Patrol, or beat, a group of personnel assigned to monitor a specific area ** Beat (police), the territory that a police officer patrols ** Gay beat, an area frequented by gay men * Battery ...
, which is a fluctuation in perceived sound intensity due to interference between close (but unequal) pitches. The rate of beating is equal to the frequency differences of any harmonics that are present for both pitches and that coincide or nearly coincide. Piano tuners have to use their ear to " stretch" the tuning of a piano to make it sound in tune. This involves tuning the highest-pitched strings slightly higher and the lowest-pitched strings slightly lower than what a mathematical frequency table (in which octaves are derived by doubling the frequency) would suggest.


Playing and technique

As with any other musical instrument, the piano may be played from written music, by ear, or through
improvisation Improvisation is the activity of making or doing something not planned beforehand, using whatever can be found. Improvisation in the performing arts is a very spontaneous performance without specific or scripted preparation. The skills of impr ...
. While some folk and blues pianists were self-taught, in Classical and jazz, there are well-established piano teaching systems and institutions, including pre-college graded examinations, university, college and music conservatory diplomas and degrees, ranging from the B.Mus. and M.Mus. to the
Doctor of Musical Arts The Doctor of Musical Arts (DMA) is a doctoral academic degree in music. The DMA combines advanced studies in an applied area of specialization (usually music performance, music composition, or conducting) with graduate-level academic study in su ...
in piano. Piano technique evolved during the transition from harpsichord and clavichord to fortepiano playing, and continued through the development of the modern piano. Changes in musical styles and audience preferences over the 19th and 20th century, as well as the emergence of virtuoso performers, contributed to this evolution and to the growth of distinct approaches or schools of piano playing. Although technique is often viewed as only the physical execution of a musical idea, many pedagogues and performers stress the interrelatedness of the physical and mental or emotional aspects of piano playing. Well-known approaches to piano technique include those by
Dorothy Taubman Dorothy Taubman (August 16, 1917 – April 3, 2013) was an American music teacher, lecturer, and founder of the Taubman Institute of Piano. She developed the "Taubman Approach" to piano playing, though her approach provoked controversy. Life ...
,
Edna Golandsky Edna Golandsky is a classical music pianist, lecturer and pedagogue of renown. She is a graduate of the Juilliard School, where she studied under Rosina Lhévinne and Adele Marcus. She later studied privately during many years with noted pedagogue ...
,
Fred Karpoff Fred Karpoff (born January 28, 1963) is an American pianist and music educator, renowned for developing both the 3-D Piano Method of piano playing and teaching and the Entrada Piano Technique. Karpoff received his undergraduate education at Northwes ...
,
Charles-Louis Hanon Charles-Louis Hanon (2 July 181919 March 1900) was a French piano pedagogue and composer. He is best known for his work '' The Virtuoso Pianist in 60 Exercises'', which is still used today for modern piano teaching, but over the years the method ...
and Otto Ortmann.


Performance styles

Many
classical music Classical music generally refers to the art music of the Western world, considered to be distinct from Western folk music or popular music traditions. It is sometimes distinguished as Western classical music, as the term "classical music" also ...
composers, including Haydn, Mozart, and
Beethoven Ludwig van Beethoven (baptised 17 December 177026 March 1827) was a German composer and pianist. Beethoven remains one of the most admired composers in the history of Western music; his works rank amongst the most performed of the classical ...
, composed for the fortepiano, a rather different instrument than the modern piano. Even composers of the Romantic movement, like Franz Liszt, Frédéric Chopin,
Clara Clara may refer to: Organizations * CLARA, Latin American academic computer network organization * Clara.Net, a European ISP * Consolidated Land and Rail Australia, a property development consortium People * Clara (given name), a feminine gi ...
and Robert Schumann, Fanny and Felix Mendelssohn, and Johannes Brahms, wrote for pianos substantially different from 2010-era modern pianos. Contemporary musicians may adjust their interpretation of historical compositions from the 1600s to the 1800s to account for sound quality differences between old and new instruments or to changing
performance practice Historically informed performance (also referred to as period performance, authentic performance, or HIP) is an approach to the performance of classical music, which aims to be faithful to the approach, manner and style of the musical era in whi ...
. Starting in Beethoven's later career, the fortepiano evolved into an instrument more like the modern piano of the 2000s. Modern pianos were in wide use by the late 19th century. They featured an octave range larger than the earlier fortepiano instrument, adding around 30 more keys to the instrument, which extended the deep bass range and the high treble range. Factory mass production of upright pianos made them more affordable for a larger number of middle-class people. They appeared in music halls and
pub A pub (short for public house) is a kind of drinking establishment which is licensed to serve alcoholic drinks for consumption on the premises. The term ''public house'' first appeared in the United Kingdom in late 17th century, and wa ...
s during the 19th century, providing entertainment through a piano soloist, or in combination with a small dance band. Just as harpsichordists had accompanied singers or dancers performing on stage, or playing for dances, pianists took up this role in the late 1700s and in the following centuries. During the 19th century, American musicians playing for working-class audiences in small pubs and bars, particularly
African-American composers African Americans (also referred to as Black Americans and Afro-Americans) are an Race and ethnicity in the United States, ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American ...
, developed new musical genres based on the modern piano.
Ragtime Ragtime, also spelled rag-time or rag time, is a musical style that flourished from the 1890s to 1910s. Its cardinal trait is its syncopated or "ragged" rhythm. Ragtime was popularized during the early 20th century by composers such as Scott ...
music, popularized by composers such as Scott Joplin, reached a broader audience by 1900. The popularity of ragtime music was quickly succeeded by Jazz piano. New techniques and rhythms were invented for the piano, including
ostinato In music, an ostinato (; derived from Italian word for ''stubborn'', compare English ''obstinate'') is a motif or phrase that persistently repeats in the same musical voice, frequently in the same pitch. Well-known ostinato-based pieces includ ...
for
boogie-woogie Boogie-woogie is a genre of blues music that became popular during the late 1920s, developed in African-American communities since 1870s.Paul, Elliot, ''That Crazy American Music'' (1957), Chapter 10, p. 229. It was eventually extended from pian ...
, and
Shearing voicing A block chord is a chord or voicing built directly below the melody either on the strong beats or to create a four-part harmonized melody line in " locked-hands" rhythmic unison with the melody, as opposed to broken chords. This latter style, ...
.
George Gershwin George Gershwin (; born Jacob Gershwine; September 26, 1898 – July 11, 1937) was an American composer and pianist whose compositions spanned popular, jazz and classical genres. Among his best-known works are the orchestral compositions ' ...
's '' Rhapsody in Blue'' broke new musical ground by combining American jazz piano with symphonic sounds.
Comping Comp, COMP or Comps may refer to: Places In England: * Comp, Kent In France: * Comps, Drôme * Comps, Gard * Comps, Gironde * Comps-la-Grand-Ville * Comps-sur-Artuby Arts, entertainment, and media ;Music *Accompaniment, especially in jazz ...
, a technique for accompanying jazz vocalists on piano, was exemplified by Duke Ellington's technique.
Honky-tonk A honky-tonk (also called honkatonk, honkey-tonk, or tonk) is both a bar that provides country music for the entertainment of its patrons and the style of music played in such establishments. It can also refer to the type of piano ( tack piano ...
music, featuring yet another style of piano rhythm, became popular during the same era.
Bebop Bebop or bop is a style of jazz developed in the early-to-mid-1940s in the United States. The style features compositions characterized by a fast tempo, complex chord progressions with rapid chord changes and numerous changes of key, instrumen ...
techniques grew out of jazz, with leading composer-pianists such as
Thelonious Monk Thelonious Sphere Monk (, October 10, 1917 – February 17, 1982) was an American jazz pianist and composer. He had a unique improvisational style and made numerous contributions to the standard jazz repertoire, including " 'Round Midnight", ...
and
Bud Powell Earl Rudolph "Bud" Powell (September 27, 1924 – July 31, 1966) was an American jazz pianist and composer. Along with Charlie Parker, Thelonious Monk, Kenny Clarke and Dizzy Gillespie, Powell was a leading figure in the development of modern j ...
. In the late 20th century,
Bill Evans William John Evans (August 16, 1929 – September 15, 1980) was an American jazz pianist and composer who worked primarily as the leader of his trio. His use of impressionist harmony, interpretation of traditional jazz repertoire, block c ...
composed pieces combining classical techniques with his jazz experimentation. In the 1970s,
Herbie Hancock Herbert Jeffrey Hancock (born April 12, 1940) is an American jazz pianist, keyboardist, bandleader, and composer. Hancock started his career with trumpeter Donald Byrd's group. He shortly thereafter joined the Miles Davis Quintet, where he helpe ...
was one of the first jazz composer-pianists to find mainstream popularity working with newer urban music techniques such as
jazz-funk Jazz-funk is a subgenre of jazz music characterized by a strong back beat (groove), electrified sounds, and an early prevalence of analog synthesizers. The integration of funk, soul, and R&B music and styles into jazz resulted in the creati ...
and jazz-rock. Pianos have also been used prominently in rock and roll and rock music by performers such as Jerry Lee Lewis, Little Richard, Keith Emerson (
Emerson, Lake & Palmer Emerson, Lake & Palmer (informally known as ELP) were an English progressive rock supergroup formed in London in 1970. The band consisted of Keith Emerson (keyboards), Greg Lake (vocals, bass, guitar, producer) and Carl Palmer (drums, percussi ...
), Elton John,
Ben Folds Benjamin Scott Folds (born September 12, 1966) is an American singer-songwriter, musician, and composer, who is the first artistic advisor to the National Symphony Orchestra at the Kennedy Center in Washington, D.C., since May 2017. Folds was th ...
,
Billy Joel William Martin Joel (born May 9, 1949) is an American singer, pianist and songwriter. Commonly nicknamed the "Piano Man" after his album and signature song of the same name, he has led a commercially successful career as a solo artist since th ...
, Nicky Hopkins, and
Tori Amos Tori Amos (born Myra Ellen Amos; August 22, 1963) is an American singer-songwriter and pianist. She is a classically trained musician with a mezzo-soprano vocal range. Having already begun composing instrumental pieces on piano, Amos won a full ...
, to name a few. Modernist styles of music have also appealed to composers writing for the modern grand piano, including John Cage and Philip Glass.


Role

The piano is a crucial instrument in Western
classical music Classical music generally refers to the art music of the Western world, considered to be distinct from Western folk music or popular music traditions. It is sometimes distinguished as Western classical music, as the term "classical music" also ...
, jazz, blues,
rock Rock most often refers to: * Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids * Rock music, a genre of popular music Rock or Rocks may also refer to: Places United Kingdom * Rock, Caerphilly, a location in Wales ...
, folk music, and many other Western musical genres. Pianos are used in soloing or melodic roles and as accompaniment instruments. As well, pianos can be played alone, with a voice or other instrument, in small groups (bands and chamber music ensembles) and large ensembles (big band or orchestra). A large number of composers and
songwriter A songwriter is a musician who professionally composes musical compositions or writes lyrics for songs, or both. The writer of the music for a song can be called a composer, although this term tends to be used mainly in the classical music ge ...
s are proficient pianists because the piano keyboard offers an effective means of experimenting with complex melodic and harmonic interplay of chords and trying out multiple, independent melody lines that are played at the same time. Pianos are used by composers doing film and television scoring, as the large range permits composers to try out melodies and bass lines, even if the music will be orchestrated for other instruments.
Bandleader A bandleader is the leader of a music group such as a rock or pop band or jazz quartet. The term is most commonly used with a group that plays popular music as a small combo or a big band, such as one which plays jazz, blues, rhythm and blues or ...
s and choir conductors often learn the piano, as it is an excellent instrument for learning new pieces and songs to lead in performance. Many conductors are trained in piano, because it allows them to play parts of the symphonies they are conducting (using a
piano reduction In music, a reduction is an arrangement or transcription of an existing score or composition in which complexity is lessened to make analysis, performance, or practice easier or clearer; the number of parts may be reduced or rhythm may be si ...
or doing a reduction from the full score), so that they can develop their interpretation. The piano is an essential tool in music education in elementary and secondary schools, and universities and colleges. Most music classrooms and many practice rooms have a piano. Pianos are used to help teach music theory, music history and
music appreciation Music appreciation is a division of musicology that is designed to teach students how to understand and describe the contexts and creative processes involved in music composition. The concept of music appreciation is often taught as a subset of ...
classes, and even non-pianist music professors or instructors may have a piano in their office.


See also

* * * * * *
List of classical pianists This is an alphabetized list of notable solo pianists who play (or played) classical music on the piano. For those who worked with other pianists as piano duos, see List of classical piano duos (performers). For a list of recorded classical pianis ...
*
List of films about pianists {{Short description, none The following is a list of films about pianists or in which pianists play a significant role. Documentaries *'' Antonia: A Portrait of the Woman'' (1974): A documentary about Antonia Brico. *'' Art Tatum: The Art of Jazz ...
* List of piano manufacturers *
List of piano brand names This article is a list of piano brand names from all over the world. This list also includes names of old instruments which are no longer in production. Many of these piano brand names are "stencil pianos", which means that the company which owns ...
*
List of piano makers This is a partial list of piano manufacturers. Most piano professionals have access to detailed information about these brands using a Piano Atlas to reference serial numbers, which are used to determine a piano's age using the year a piano was ...
*
List of piano composers This is a list of piano composers. Baroque period * Domenico Alberti (1710–1740) * Johann Sebastian Bach (1685–1750) * François Couperin (1668–1733) * Louis-Claude Daquin (1694–1772) * Baldassare Galuppi (1706–1785) * Lodovico Giu ...


Notes


References

* * * Gives the basics of how pianos work, and a thorough evaluative survey of current pianos and their manufacturers. It also includes advice on buying and owning pianos. * is a standard reference on the history of the piano. * is an authoritative work covering the ancestry of the piano, its invention by Cristofori, and the early stages of its subsequent evolution. * contains a wealth of information. Main article: Edwin M. Ripin, Stewart Pollens, Philip R. Belt, Maribel Meisel, Alfons Huber, Michael Cole, Gert Hecher, Beryl Kenyon de Pascual, Cynthia Adams Hoover, Cyril Ehrlich, Edwin M. Good, Robert Winter, and J. Bradford Robinson. "Pianoforte".


Further reading

* * * * * * * * * *


External links


History of the Piano Forte
Association of Blind Piano Tuners, UK

* ttp://www.frederickcollection.org/collection.html The Frederick Historical Piano Collection
The Pianofortes of Bartolomeo Cristofori, Heilbrunn Timeline of Art History, The Metropolitan Museum of Art


*
The Piano in Polish Collections
' (historical instruments) {{Authority control Articles containing video clips Chordophones Italian inventions Keyboard instruments European percussion instruments Orchestral instruments Rhythm section C instruments 17th-century inventions Italian musical instruments String instruments