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Musical Cents
The cent is a logarithmic unit of measure used for musical intervals. Twelve-tone equal temperament divides the octave into 12 semitones of 100 cents each. Typically, cents are used to express small intervals, to check intonation, or to compare the sizes of comparable intervals in different tuning systems. For humans, a single cent is too small to be perceived between successive notes. Cents, as described by Alexander John Ellis, follow a tradition of measuring intervals by logarithms that began with Juan Caramuel y Lobkowitz in the 17th century. Ellis chose to base his measures on the hundredth part of a semitone, \sqrt 200/math>, at Robert Holford Macdowell Bosanquet's suggestion. Making extensive measurements of musical instruments from around the world, Ellis used cents to report and compare the scales employed, and further described and utilized the system in his 1875 edition of Hermann von Helmholtz's ''On the Sensations of Tone''. It has become the standard met ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cent Versus Semitone Monochord ET
Cent may refer to: Currency * Cent (currency), a one-hundredth subdivision of several units of currency * Penny (Canadian coin), a Canadian coin removed from circulation in 2013 * 1 cent (Dutch coin), a Dutch coin minted between 1941 and 1944 * 1 cent euro coin, a European coin * Penny (United States coin), a United States coin Locations * Cents, Luxembourg, a quarter of Luxembourg City, Luxembourg * Cent, the Old English term for modern-day Kent, England Measurement *Cent (music), a logarithmic measure of relative pitch or intervals *"Cent" is an informal name for of a Units of measurement, unit of measurement, as in "12 cents of an inch". Specifically, it can refer to: :*an alternative name for the point, a unit of mass for gemstones equal to of a carat (unit), carat :*Cent (area), a unit of land area equal to of an acre (used in the Indian states of Kerala and Tamil Nadu); also known as the decimal (unit) in West Bengal and Bangladesh :*a unit of nuclear reactivity; see Do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Music Intervals Frequency Ratio Equal Tempered Pythagorean Comparison
Music is the arrangement of sound to create some combination of Musical form, form, harmony, melody, rhythm, or otherwise Musical expression, expressive content. Music is generally agreed to be a cultural universal that is present in all human societies. Definitions of music vary widely in substance and approach. While scholars agree that music is defined by a small number of elements of music, specific elements, there is no consensus as to what these necessary elements are. Music is often characterized as a highly versatile medium for expressing human creativity. Diverse activities are involved in the creation of music, and are often divided into categories of musical composition, composition, musical improvisation, improvisation, and performance. Music may be performed using a wide variety of musical instruments, including the human voice. It can also be composed, sequenced, or otherwise produced to be indirectly played mechanically or electronically, such as via a music box ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centitone
The cent is a logarithmic unit of measure used for musical intervals. Twelve-tone equal temperament divides the octave into 12 semitones of 100 cents each. Typically, cents are used to express small intervals, to check intonation, or to compare the sizes of comparable intervals in different tuning systems. For humans, a single cent is too small to be perceived between successive notes. Cents, as described by Alexander John Ellis, follow a tradition of measuring intervals by logarithms that began with Juan Caramuel y Lobkowitz in the 17th century. Ellis chose to base his measures on the hundredth part of a semitone, \sqrt 200/math>, at Robert Holford Macdowell Bosanquet's suggestion. Making extensive measurements of musical instruments from around the world, Ellis used cents to report and compare the scales employed, and further described and utilized the system in his 1875 edition of Hermann von Helmholtz's ''On the Sensations of Tone''. It has become the standard meth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaspard De Prony
Baron Gaspard Clair François Marie Riche de Prony (22 July 1755 – 29 July 1839) was a French mathematician and engineer, who worked on hydraulics. He was born at Chamelet, Beaujolais, France and died in Asnières-sur-Seine, France. Education and early works He was Engineer-in-Chief of the ational school of bridges and roads a technical school in Paris. The trigonometric and logarithmic tables of the cadastre In 1791, Prony embarked on the task of producing logarithmic and trigonometric tables for the French Cadastre (geographic survey). The effort was sanctioned by the French National Assembly, which, after the French Revolution wanted to bring uniformity to the multiple measurements and standards used throughout the nation. In particular, his tables were intended for precise land surveys, as part of a greater cadastre effort. The tables were vast, calculating logarithms from 1 to 200,000, with values calculated to between fourteen and twenty-nine decimal places, ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Sauveur
Joseph Sauveur (; 24 March 1653 – 9 July 1716) was a French mathematician and physicist. He was a professor of mathematics and in 1696 became a member of the French Academy of Sciences. Life Joseph Sauveur was born in La Flèche, the son of a provincial notary. Despite a hearing and speech impairment that kept him totally mute until he was seven, Joseph benefited from a fine education at the Jesuit College of La Flèche. At seventeen, his uncle agreed to finance his studies in philosophy and theology at Paris. Joseph, however, discovered Euclid and turned to anatomy and botany. He soon met Cordemoy, reader to the son of Louis XIV; and Cordemoy soon sang his praises to Bossuet, preceptor to the Dauphin. Despite his handicap, Joseph promptly began teaching mathematics to the Dauphine's pages and also to a number of princes, among them Eugene of Savoy. By 1680, he was something of a pet at court, where he gave anatomy courses to courtiers and calculated for them the odds in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amusia
Amusia is a musical disorder that appears mainly as a defect in processing pitch but also encompasses musical memory and recognition. Two main classifications of amusia exist: acquired amusia, which occurs as a result of brain damage, and congenital amusia, which results from a music-processing anomaly present since birth. Studies have shown that congenital amusia is a deficit in fine-grained pitch discrimination. Early estimates suggested that 4% of the population has this disorder. More recent direct counts based on a sample of 20,000 people indicate a true rate closer to 1.5%. Acquired amusia may take several forms. Patients with brain damage may experience the loss of ability to produce musical sounds while sparing speech, much like aphasics lose speech selectively but can sometimes still sing. Other forms of amusia may affect specific sub-processes of music processing. Current research has demonstrated dissociations between rhythm, melody, and emotional processing of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verdi
Giuseppe Fortunino Francesco Verdi ( ; ; 9 or 10 October 1813 – 27 January 1901) was an Italian composer best known for his operas. He was born near Busseto, a small town in the province of Parma, to a family of moderate means, receiving a musical education with the help of a local patron, Antonio Barezzi. Verdi came to dominate the Italian opera scene after the era of Gioachino Rossini, Vincenzo Bellini, and Gaetano Donizetti, whose works significantly influenced him. In his early operas, Verdi demonstrated sympathy with the Risorgimento movement which sought the unification of Italy. He also served briefly as an elected politician. The chorus " Va, pensiero" from his early opera ''Nabucco'' (1842), and similar choruses in later operas, were much in the spirit of the unification movement, and the composer himself became esteemed as a representative of these ideals. An intensely private person, Verdi did not seek to ingratiate himself with popular movements. As he bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellens Dritter Gesang
"" ("", Otto Erich Deutsch, D. 839, Opus number, Op. 52, No. 6, 1825), in English: "Ellen's Third Song", was composed by Franz Schubert in 1825 as part of his Op. 52, a setting of seven songs from Walter Scott's 1810 popular narrative poem ''The Lady of the Lake (poem), The Lady of the Lake'', loosely translated into German. It is one of Schubert's most popular works. Beyond the song as originally composed by Schubert, it is often performed and recorded by many singers under the title "Ave Maria" (the Latin name of the prayer Hail Mary, and also the opening words and refrain of Ellen's song, a song which is itself a prayer to the Mary, mother of Jesus, Virgin Mary), in musically simplified arrangements and with various lyrics that commonly differ from the original context of the poem. It was Arrangement, arranged in Transcriptions by Franz Liszt#Franz Schubert, three versions for piano by Franz Liszt. ''The Lady of the Lake'' and the "Ave Maria" The piece was composed as a setti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vibrato
Vibrato (Italian language, Italian, from past participle of "wikt:vibrare, vibrare", to vibrate) is a musical effect consisting of a regular, pulsating change of pitch (music), pitch. It is used to add expression to vocal and instrumental music. Vibrato is typically characterized in terms of two factors: the amount of pitch variation ("extent of vibrato") and the speed with which the pitch is varied ("rate of vibrato"). In singing, it can occur spontaneously through variations in the larynx. The vibrato of a string instrument and wind instrument is an imitation of that vocal function. Vibrato can also be reproduced mechanically (Leslie speaker) or electronically as an Audio signal processing, audio effect close to Chorus (audio effect), chorus. Terminology History Descriptions of what would now be characterised as vibrato go back to the 16th century. However, no evidence exists of authors using the term vibrato before the 19th century. Instead, authors used various descrip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timbre
In music, timbre (), also known as tone color or tone quality (from psychoacoustics), is the perceived sound of a musical note, sound or tone. Timbre distinguishes sounds according to their source, such as choir voices and musical instruments. It also enables listeners to distinguish instruments in the same category (e.g., an oboe and a clarinet, both woodwinds). In simple terms, timbre is what makes a particular musical instrument or human voice have a different sound from another, even when they play or sing the same note. For instance, it is the difference in sound between a guitar and a piano playing the same note at the same volume. Both instruments can sound equally tuned in relation to each other as they play the same note, and while playing at the same amplitude level each instrument will still sound distinctive with its own unique tone color. Musicians distinguish instruments based on their varied timbres, even instruments playing notes at the same pitch and volume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Just Noticeable Difference
In the branch of experimental psychology focused on sense, sensation, and perception, which is called psychophysics, a just-noticeable difference or JND is the amount something must be changed in order for a difference to be noticeable, detectable at least half the time. This limen is also known as the difference limen, difference threshold, or least perceptible difference. Quantification For many sensory modalities, over a wide range of stimulus magnitudes sufficiently far from the upper and lower limits of perception, the 'JND' is a fixed proportion of the reference sensory level, and so the ratio of the JND/reference is roughly constant (that is the JND is a constant proportion/percentage of the reference level). Measured in physical units, we have: \frac = k, where I\! is the original intensity of the particular stimulation, \Delta I\! is the addition to it required for the change to be perceived (the JND), and ''k'' is a constant. This rule was first discovered by Ernst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unison Versus Cent Waveform
Unison (stylised as UNISON) is a British trade union. Along with Unite, Unison is one of the two largest trade unions in the United Kingdom, with over 1.2 million members who work predominantly in public services, including local government, education, health and outsourced services. The union was formed in 1993 when three public sector trade unions, the National and Local Government Officers Association (NALGO), the National Union of Public Employees (NUPE) and the Confederation of Health Service Employees (COHSE) merged. UNISON's current general secretary is Christina McAnea, who replaced Dave Prentis in 2021. Members and organisation Members of UNISON are typically from industries within the public sector and generally cover both full-time and part-time support and administrative staff. The majority of people joining UNISON are workers within sectors such as local government, education, the National Health Service Registered Nurses, NHS Managers and Clinical Support Wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
