Scales starting from #6 are compiled from the Scala library, available from: http://www.xs4all.nl/~huygensf/scala/ # Label Name Scale size Description 0 12-Tone 12 The standard 12-tone equal tempered chromatic scale 1 Basic Just Intonation 12 Ratios: 1:1 16:15 9:8 6:5 5:4 4:3 45:32 3:2 8:5 5:3 9:5 15:8 2 Augmented Just 12 Ratios: 1:1 135:128 9:8 75:64 5:4 4:3 45:32 3:2 25:16 5:3 225:128 15:8 3 Kepler's Just Scale 12 Ratios: 1:1 135:128 9:8 6:5 5:4 4:3 45:32 3:2 405:256 27:16 9:5 15:8 4 Pythagorean 12 Ratios: 1:1 2187:2048 9:8 19683:16384 81:64 4:3 729:512 3:2 6561:4096 27:16 59049:32768 243:128 5 19-Tone 19 19-tone equal tempered scale 6 AEOLIC.SCL 7 Ancient Greek Aeolic, also tritriadic scale of the 54:64:81 triad 7 ARABIC.SCL 17 Arabic 17-tone Pythagorean mode, Safi al-Din 8 CARLOS_HARM.SCL 12 Carlos Harmonic, also Dan Schmidt Slendro-Pelog with 13,17,19,21,27 9 HARRISON_8.SCL 8 Harrison 8-tone from Serenade for Guitar 10 INDIAN_12.SCL 12 North Indian Gamut, modern Hindustani gamut out of 22 or more shrutis 11 OLYMPOS.SCL 5 Scale of ancient Greek flutist Olympos, 6th century BC as reported by Partch