|
The γ (gamma) scale is a non-octave repeating musical scale. In one interpretation, it splits the perfect fifth into 20 equal parts of 35.1 cents each. In another, it splits the neutral third into two equal parts, or ten equal parts of approximately 35.1 cents each〔Carlos, Wendy (1989-96). ("Three Asymmetric Divisions of the Octave" ), ''WendyCarlos.com''.〕 . At 35.1 cents per step this totals 34.188 steps per octave.〔 It may be derived from using 20:11 to approximate the interval 3:2/5:4,〔 which equals 6:5 . It was invented by Wendy Carlos. "It produces nearly perfect triads."〔Milano, Dominic (November 1986). ("A Many-Colored Jungle of Exotic Tunings" ), ''Keyboard''.〕 "A 'third flavor,' sort of intermediate to 'alpha' and 'beta', although a melodic diatonic scale is easily available."〔 More accurately the gamma scale step is 35.099 cents and there are 34.1895 per octave.〔Benson, Dave (2006). ''Music: A Mathematical Offering'', p.232-233. ISBN 0-521-85387-7. "Carlos has 34.188 γ-scale degrees to the octave, corresponding to a scale degree of 35.1 cents."〕 ==See also== *Alpha scale *Beta scale *Delta scale *Bohlen–Pierce scale 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「Gamma scale」の詳細全文を読む スポンサード リンク
|