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  2. Quarter tone - Wikipedia

    en.wikipedia.org/wiki/Quarter_tone

    Quarter tone on C. A quarter tone is a pitch halfway between the usual notes of a chromatic scale or an interval about half as wide (orally, or logarithmically) as a semitone, which itself is half a whole tone. Quarter tones divide the octave by 50 cents each, and have 24 different pitches.

  3. List of quarter tone pieces - Wikipedia

    en.wikipedia.org/wiki/List_of_quarter_tone_pieces

    String Quartet in quarter-tones (c.1924) {There are also 7 others with some using smaller intervals.} [19] Suite for solo guitar in quarter-tones (1960) [ 19 ] 3 estudios en forma de sonatina for solo violin in quarter-tones (1927) [ 19 ]

  4. Microtonality - Wikipedia

    en.wikipedia.org/wiki/Microtonality

    Major microtonal composers of the 1920s and 1930s include Alois Hába (quarter tones, or 24 equal pitches per octave, and sixth tones), Julián Carrillo (24 EDO, 36, 48, 60, 72, and 96 equal pitches to the octave embodied in a series of specially custom-built pianos), Ivan Wyschnegradsky (third tones, quarter tones, sixth tones and twelfth ...

  5. List of pitch intervals - Wikipedia

    en.wikipedia.org/wiki/List_of_pitch_intervals

    Comparison between tunings: Pythagorean, equal-tempered, quarter-comma meantone, and others.For each, the common origin is arbitrarily chosen as C. The degrees are arranged in the order or the cycle of fifths; as in each of these tunings except just intonation all fifths are of the same size, the tunings appear as straight lines, the slope indicating the relative tempering with respect to ...

  6. Category:Quarter tones - Wikipedia

    en.wikipedia.org/wiki/Category:Quarter_tones

    Pages in category "Quarter tones" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. ...

  7. Septimal quarter tone - Wikipedia

    en.wikipedia.org/wiki/Septimal_quarter_tone

    A septimal quarter tone (in music) is an interval with the ratio of 36:35, which is the difference between the septimal minor third and the Just minor third, or about 48.77 cents wide. The name derives from the interval being the 7-limit approximation of a quarter tone .

  8. Quarter-comma meantone - Wikipedia

    en.wikipedia.org/wiki/Quarter-comma_meantone

    As discussed above, in the quarter-comma meantone temperament, the ratio of a semitone is S = 8 : 5 5 ⁄ 4, the ratio of a tone is T = √ 5 : 2. The tones in the diatonic scale can be divided into pairs of semitones. However, since S 2 is not equal to T, each tone must be composed of a pair of unequal semitones, S, and X:

  9. Arab tone system - Wikipedia

    en.wikipedia.org/wiki/Arab_tone_system

    The modern Arab tone system, or system of musical tuning, is based upon the theoretical division of the octave into twenty-four equal divisions or 24-tone equal temperament, the distance between each successive note being a quarter tone (50 cents). Each tone has its own name not repeated in different octaves, unlike systems featuring octave ...