Accidental (music)
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In musical notation, an accidental is a symbol that indicates an alteration of a given pitch. The most common accidentals are the flat and the sharp, which represent alterations of a semitone, and the
An example of the use of a double accidental
Microtonality
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Microtonality is the use in music of microtones — intervals smaller than a semitone, also called "microintervals". It may also be extended to include any music using intervals not found in the customa
Accidental (music)
…Publishers of free jazz music and some atonal music sometimes eschew all courtesy accidentals. Composers of microtonal music have developed a number of notations for indicating the various pitches outside of standard notation. One such system for notating quarter tones, used…
Vicentino's archicembalo in cents