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In music, the dynamics of a piece is the variation in
loudness In acoustics, loudness is the subjective perception of sound pressure. More formally, it is defined as, "That attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud". The relation of ph ...
between notes or
phrases In syntax and grammar, a phrase is a group of words or singular word acting as a grammatical unit. For instance, the English expression "the very happy squirrel" is a noun phrase which contains the adjective phrase "very happy". Phrases can consi ...
. Dynamics are indicated by specific musical notation, often in some detail. However, dynamics markings still require interpretation by the performer depending on the musical context: for instance, the ''forte'' marking (meaning loud) in one part of a piece might have quite different objective loudness in another piece or even a different section of the same piece. The execution of dynamics also extends beyond loudness to include changes in timbre and sometimes tempo rubato.


Purpose and interpretation

Dynamics are one of the expressive elements of music. Used effectively, dynamics help musicians sustain variety and interest in a musical performance, and communicate a particular emotional state or feeling. Dynamic markings are always relative. never indicates a precise level of
loudness In acoustics, loudness is the subjective perception of sound pressure. More formally, it is defined as, "That attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud". The relation of ph ...
; it merely indicates that music in a passage so marked should be considerably quieter than . There are many factors affecting the interpretation of a dynamic marking. For instance, the middle of a musical phrase will normally be played louder than the beginning or end, to ensure the phrase is properly shaped, even where a passage is marked throughout. Similarly, in multi-part music, some voices will naturally be played louder than others, for instance, to emphasize the melody and the bass line, even if a whole passage is marked at one dynamic level. Some instruments are naturally louder than others – for instance, a tuba playing ''piano'' will likely be louder than a guitar playing ''fortissimo'', while a high-pitched instrument like the
piccolo The piccolo ( ; Italian for 'small') is a half-size flute and a member of the woodwind family of musical instruments. Sometimes referred to as a "baby flute" the modern piccolo has similar fingerings as the standard transverse flute, but the s ...
playing in its upper register can usually sound loud even when its actual decibel level is lower than that of other instruments.


Dynamic markings

The two basic dynamic indications in music are: * or ''piano'', meaning "quiet". * or ''forte'', meaning "loud or strong". More subtle degrees of loudness or softness are indicated by: * , standing for ''mezzo-piano'', meaning "moderately quiet". * , standing for ''mezzo-forte'', meaning "moderately loud". * ', standing for ''più piano'' and meaning "more quiet". * ', standing for ''più forte'' and meaning "more loud". Use of up to three consecutive s or s is also common: * , standing for ''pianissimo'' and meaning "very quiet". * , standing for ''fortissimo'' and meaning "very loud". * ("triple ''piano''"), standing for ''pianississimo'' and meaning "very very quiet". * ("triple ''forte''"), standing for ''fortississimo'' and meaning "very very loud". :


Changes

Three Italian words are used to show gradual changes in volume: * ''crescendo'' (abbreviated ') translates as "increasing" (literally "growing") * ''decrescendo'' (abbreviated to ') translates as "decreasing". * ''diminuendo'' (abbreviated ') translates as "diminishing". Signs sometimes referred to as " hairpins" are also used to stand for these words (See image). If the angle lines open up (), then the indication is to get louder; if they close gradually (), the indication is to get softer. The following notation indicates music starting moderately strong, then becoming gradually stronger and then gradually quieter: \relative c'' Hairpins are usually written below the
staff Staff may refer to: Pole * Staff, a weapon used in stick-fighting ** Quarterstaff, a European pole weapon * Staff of office, a pole that indicates a position * Staff (railway signalling), a token authorizing a locomotive driver to use a particula ...
(or between the two staves in a grand staff), but are sometimes found above, especially in music for singers or in music with multiple melody lines being played by a single performer. They tend to be used for dynamic changes over a relatively short space of time (at most a few bars), while ', ' and ' are generally used for changes over a longer period. Word directions can be extended with dashes to indicate over what time the event should occur, which may be as long as multiple pages. The word ''morendo'' ("dying") is also sometimes used for a gradual reduction in dynamics (and tempo). For greater changes in dynamics, ' and ' are often used, where the ''molto'' means "much". Similarly, for more gradual changes ' and ' are used, where "poco" translates as ''a little'', or alternatively with ''poco a poco'' meaning "little by little". Sudden changes in dynamics may be notated by adding the word ''subito'' (meaning "suddenly") as a prefix or suffix to the new dynamic notation. ''Subito piano (''abbreviated ' or ) ("suddenly soft") indicates that the dynamics quickly, almost abruptly, lower the volume to approximately the range. It is often purposefully used to subvert the listener's expectation and will signify an intimate expression. Although it uses the ''piano'' dynamic symbol, the performer has slight freedom in their interpretation, causing it to vary based on the preceding loudness or character of the piece. Likewise, ''subito'' can be used to mark suddenly louder changes, like ''subito forte'' , or ''subito fortissimo'' , however in these cases it's usually only used to add a particular amount of accent to one note or chord. If subito is used to note a sudden change to an entire louder passage, something like or should be used to leave out any ambiguity. Accented notes are typically notated with the ''accent'' sign > above or below the note, giving it a general emphasis relative to the current dynamics. A harder and shorter emphasis is usually marked with the ''marcato'' mark ^ above the note instead. If a very particular emphasis is needed instead, it can be marked with a variation of ''subito'', ''forzando''/''forzato'' or ''fortepiano''. ''forzando''/''forzato'' indicates a forceful accent and is abbreviated as . To emphasize the effect, it is most often preceded with ''subito'' as (''subito forzato/forzando'', ''sforzando''/''sforzato''). How these should be interpreted and played in the music is up to the judgement of the performer, but a rule of thumb is that a ''forzato/forzando'' can be considered as a variation on ''marcato'' while ''subito forzando/forzato'' can be considered a variation on ''marcato'' with added ''tenuto''. The
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 ...
notation indicates a ''forte'' followed immediately by ''piano''. By contrast, is an abbreviation for ''poco forte'', literally "a little loud" but (according to Brahms) meaning ''with the character of forte, but the sound of piano'', though rarely used because of possible confusion with '' pianoforte''.


Extreme dynamic markings

While the typical range of dynamic markings is from to , some pieces use additional markings of further emphasis. Extreme dynamic markings imply an extreme range of loudness, or, alternatively, imply an extremely subtle distinction between very small differences of loudness within a normal range. This kind of usage is most common in orchestral works from the late 19th century onwards. Generally, these markings are supported by the orchestration of the work, with heavy forte markings brought to life by having many loud instruments like brass and percussion playing at once. * In Holst's '' The Planets'', occurs twice in "Mars" and once in "Uranus", often punctuated by organ. * Tchaikovsky marks a bassoon solo (6 s) in his ''Pathétique'' Symphony and uses in passages of his ''
1812 Overture ''The Year 1812, Solemn Overture'', Op. 49, popularly known as the ''1812 Overture'', is a concert overture in E major written in 1880 by Russian composer Pyotr Ilyich Tchaikovsky to commemorate the successful Russian defense against Napoleon I ...
'' and his Fifth Symphony. Tchaikovsky at least once uses fffff, in his early poem Tempest (1873). * The baritone passage "Era la notte" from Verdi's opera '' Otello'' uses , though the same spot is marked in the full score. * Igor Stravinsky used at the end of the finale of the 1919 ''Firebird Suite''. * Sergei Rachmaninoff uses in his Prelude in C, Op. 3 No. 2. * Gustav Mahler, in the third movement of his Seventh Symphony, gives the celli and basses a marking of (5 s), along with a footnote directing ' pluck so hard that the strings hit the wood'. * On the other extreme, Carl Nielsen, in the second movement of his Fifth Symphony, marked a passage for woodwinds a diminuendo to (5 s), * The original piano version of
F. W. Meacham Frank White Meacham (May 31, 1856 – December 22, 1909) was an American composer and arranger of Tin Pan Alley. Meacham was born in Brooklyn, New York. His most famous work is ''American Patrol'' (1885), a popular march. Written originally f ...
's American Patrol begins at and ends at . *
György Ligeti György Sándor Ligeti (; ; 28 May 1923 – 12 June 2006) was a Hungarian-Austrian composer of contemporary classical music. He has been described as "one of the most important avant-garde composers in the latter half of the twentieth century ...
uses extreme dynamics in his music: the
Cello Concerto A cello concerto (sometimes called a violoncello concerto) is a concerto for solo cello with orchestra or, very occasionally, smaller groups of instruments. These pieces have been written since the Baroque era if not earlier. However, unlike instr ...
begins with a passage marked (8 s), in his Piano Études Étude No. 9 (''Vertige'') ends with a diminuendo to (8 s), while Étude No. 13 (''L'Escalier du Diable'') contains a passage marked (6 s) that progresses to a (8 s) and his opera Le Grand Macabre has (10 s) with the stroke of a hammer.


History

''On Music'', one of the '' Moralia'' attributed to the philosopher
Plutarch Plutarch (; grc-gre, Πλούταρχος, ''Ploútarchos''; ; – after AD 119) was a Greek Middle Platonist philosopher, historian, biographer, essayist, and priest at the Temple of Apollo in Delphi. He is known primarily for hi ...
in the first century AD, suggests that ancient Greek musical performance included dynamic transitions – though dynamics receive far less attention in the text than does
rhythm Rhythm (from Greek , ''rhythmos'', "any regular recurring motion, symmetry") generally means a " movement marked by the regulated succession of strong and weak elements, or of opposite or different conditions". This general meaning of regular re ...
or harmony. The
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ide ...
composer Giovanni Gabrieli was one of the first to indicate dynamics in music notation, but dynamics were used sparingly by composers until the late 18th century. J.S. Bach used some dynamic terms, including ''forte'', ''piano'', ''più piano'', and ''pianissimo'' (although written out as full words), and in some cases it may be that was considered to mean ''pianissimo'' in this period. The fact that the harpsichord could play only "terraced" dynamics (either loud or soft, but not in between), and the fact that composers of the period did not mark gradations of dynamics in their scores, has led to the "somewhat misleading suggestion that
baroque The Baroque (, ; ) is a style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished in Europe from the early 17th century until the 1750s. In the territories of the Spanish and Portuguese empires including ...
dynamics are 'terraced dynamics'," writes Robert Donington. In fact, baroque musicians constantly varied dynamics: in 1752, Johann Joachim Quantz wrote that "Light and shade must be constantly introduced ... by the incessant interchange of loud and soft." In addition to this, the harpsichord in fact becomes louder or softer depending on the thickness of the musical texture (four notes are louder than two). This allowed composers like J.S. Bach to build dynamics directly into their compositions, without the need for notation. In the Romantic period, composers greatly expanded the vocabulary for describing dynamic changes in their scores. Where Haydn and Mozart specified six levels ( to ),
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 classic ...
used also and (the latter less frequently), and Brahms used a range of terms to describe the dynamics he wanted. In the slow movement of Brahms's trio for violin, horn and piano (Opus 40), he uses the expressions , ''molto piano'', and '' quasi niente'' to express different qualities of quiet. Many Romantic and later composers added ' and ', making for a total of ten levels between and . An example of how effective contrasting dynamics can be may be found in the overture to Smetana’s opera '' The Bartered Bride''. The fast scurrying quavers played pianissimo by the second violins form a sharply differentiated background to the incisive thematic statement played fortissimo by the firsts.


Interpretation by notation programs

In some music notation programs, there are default
MIDI MIDI (; Musical Instrument Digital Interface) is a technical standard that describes a communications protocol, digital interface, and electrical connectors that connect a wide variety of electronic musical instruments, computers, and ...
key velocity values associated with these indications, but more sophisticated programs allow users to change these as needed. These defaults are listed in the following table for some applications, including Apple's Logic Pro 9 (2009–2013), Avid's Sibelius 5 (2007–2009), musescore.org's MuseScore 3.0 (2019), MakeMusic's
Finale Finale may refer to: Pieces of music * Finale (music), the last movement of a piece * ''Finale'' (album), a 1977 album by Loggins and Messina * "Finale B", a 1996 song from the rock opera ''Rent'' * "Finale", a song by Anthrax from ''State of E ...
26 (2018-2021), and Musitek's SmartScore X2 Pro (2016) and 64 Pro. (2021). MIDI specifies the range of key velocities as an integer between 0 and 127: The velocity effect on volume depends on the particular instrument. For instance, a grand piano has a much greater volume range than a recorder.


Relation to audio dynamics

The introduction of modern recording techniques has provided alternative ways to control the dynamics of music.
Dynamic range compression Dynamic range compression (DRC) or simply compression is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet sounds, thus reducing or ''compressing'' an audio signal's dynamic range. Compression is ...
is used to control the
dynamic range Dynamic range (abbreviated DR, DNR, or DYR) is the ratio between the largest and smallest values that a certain quantity can assume. It is often used in the context of signals, like sound and light. It is measured either as a ratio or as a base ...
of a recording, or a single instrument. This can affect loudness variations, both at the micro- and macro scale. In many contexts, the meaning of the term ''dynamics'' is therefore not immediately clear. To distinguish between the different aspects of dynamics, the term ''performed dynamics'' can be used to refer to the aspects of music dynamics that is controlled exclusively by the performer.


See also

* Accent (music) * Glossary of musical terminology


Notes


References

{{DEFAULTSORT:Dynamics (Music) Musical notation Musical terminology Elements of music