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A centitone (also Iring) is a musical interval (21/600) of two cents (22/1200)〔Randel, Don Michael (1999). ''The Harvard Concise Dictionary of Music and Musicians'', p.123. ISBN 9780674000841. Randel, Don Michael (2003). ''The Harvard Concise Dictionary of Music and Musicians'', p.154 & 416. ISBN 9780674011632.〕 proposed as a unit of measurement () by Widogast Iring in ''Die reine Stimmung in der Musik'' (1898) as 600 steps per octave and later by Joseph Yasser in ''A Theory of Evolving Tonality'' (1932) as 100 steps per equal tempered whole tone. Iring noticed that the Grad/Werckmeister (1.96 cents, 12 per Pythagorean comma) and the schisma (1.95 cents) are nearly the same (≈ 614 steps per octave) and both may be approximated by 600 steps per octave (2 cents).〔"(Logarithmic Interval Measures )", ''Huygens-Fokker.org''. 〕 Yasser promoted the decitone, centitone, and millitone (10, 100, and 1000 steps per whole tone = 60, 600, and 6000 steps per octave = 20, 2, and 0.2 cents).〔Yasser, Joseph (1932). ''A Theory of Evolving Tonality'', p.14. American Library of Musicology.〕〔Farnsworth, Paul Randolph (1969). ''The Social Psychology of Music'', p.24. ISBN 9780813815473.〕 For example: Equal tempered perfect fifth = 700 cents = 175.6 savarts = 583.3 millioctaves = 350 centitones.〔Apel, Willi (1970). ''Harvard Dictionary of Music'', p.363. Taylor & Francis.〕 ==See also== *Equal temperament *Logarithm *degree *radian *gradian 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Centitone」の詳細全文を読む スポンサード リンク
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