Английская Википедия:Augmented unison
In modern Western tonal music theory an augmented unison or augmented prime[3] is the interval between two notes on the same staff position, or denoted by the same note letter, whose alterations cause them, in ordinary equal temperament, to be one semitone apart. In other words, it is a unison where one note has been altered by a half-step, such as BШаблон:Music and BШаблон:Music or CШаблон:Music and CШаблон:Music. The interval is often described as a chromatic semitone.[4] The term, in its French form unisson superflu, appears to have been coined by Jean-Philippe Rameau in 1722, who also called this interval a minor semitone (semiton mineur).[5] Historically, this interval, like the tritone, is described as being "mi contra fa", and therefore is the "diabolus in musica" (the Devil in music).[6] In 12-tone equal temperament, it is the enharmonic equivalent of a diatonic semitone or minor second,[1] although in other tunings the diatonic semitone is a different interval.
Diminished unison
The term diminished unison or diminished prime is also found occasionally. It is found once in Rameau's writings, for example,[5] as well as subsequent French, German, and English sources.[diminished 1] Other sources reject the possibility or utility of the diminished unison on the grounds that any alteration to the unison increases its size, thus augmenting rather than diminishing it.[augmented 1] The term is sometimes justified as a negative-numbered interval,[7][8] and also in terms of violin double-stopping technique on analogy to parallel intervals found on other strings.[9] Some theoreticians make a distinction for this diminished form of the unison, stating it is only valid as a melodic interval, not a harmonic one.[melodic 1]
See also
Notes
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References
- ↑ 1,0 1,1 Ошибка цитирования Неверный тег
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<ref>; для сносокgroveне указан текст - ↑ 5,0 5,1 Gene Henry Anderson, "Musical Terminology in J.-P. Rameau's Traité de l'harmonie: A Study and Glossary Based on an Index". PhD diss. (Iowa City: University of Iowa, 1981): 196.
- ↑ Andreas Werckmeister, Harmonologia musica, oder kurze Anleitung zur musicalischen Composition (Frankfurt and Leipzig: Theodor Philipp Calvisius, 1702): 6, and Musicalische Paradoxal-Discourse, oder allgemeine Vorstellungen (Quedlinburg: Theodor Philipp Calvisius, 1707): 75–76.
- ↑ Eytan Agmon, The Languages of Western Tonality, Computational Music Science (Berlin, Heidelberg, New York, Dordrecht, London: Springer-Verlag, 2013): 64, 151. Шаблон:ISBN (cloth); Шаблон:ISBN (ebook)
- ↑ Steven Porter, Music: A Comprehensive Introduction: Workbook No. 1: Music Theory (New York: Excelsior Music Publishing, 1986): 8. Шаблон:ISBN.
- ↑ Karl Courvoisier, Die Violin-Technik (Cologne: Pet. Jos. Tonger, 1878): 26. English edition, as The Technics of Violin Playing, the Strad Library 1 (London: The Strad; New York: Charles Scribner's Sons, 1908): 49.
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