Dave Smith Instruments Prophet REV2 Mode D'emploi page 156

One of the pioneers of modern microtonal composition, Partch built
century, to perform his own compositions. The large number of intervals
in this very dense scale offers a full vocabulary of expressive chords
pitched instruments like marimbas and organs to perform glissando-like
passages. G = 1/1 (392 Hz, MIDI note 67)
1/1 81/80 33/32 21/20 16/15 12/11 11/10 10/9 9/8 8/7 7/6 32/27 6/5 11/9
5/4 14/11 9/7 21/16 4/3 27/20 11/8 7/5 10/7 16/11 40/27 3/2 32/21 14/9
11/7 8/5 18/11 5/3 27/16 12/7 7/4 16/9 9/5 20/11 11/6 15/8 40/21 64/33
160/81
17. Arabic 12-Tone
A 12-tone approximation of an Arabic scale, which appears in some elec-
tronic keyboards designed for use with Arabic music. Not a JI scale, nor
equal tempered. These are the intervals in Cents relative to C:
60 = Cents 0
61 = Cents +151
62 = Cents +204
63 = Cents +294
64 = Cents +355
65 = Cents +498
66 = Cents +649
67 = Cents +702
68 = Cents +853
69 = Cents +906
70 = Cents +996
71 = Cents +1057
72 = Cents +1200
74 Appendix C: Alternative Tunings Dave Smith Instruments