unequaltemperament

al-farabi_div2

Degrees: 12  •  Source: Scala
File comments
! al-farabi_div2.scl ! ! Al-Farabi's tetrachord division, incl. extra 2187/2048 & 19683/16384
Playback
Select a tone, then click Begin. Use Arrow keys to step; Space stops. You can also use 1-0, qwertyuiop, asdfghjkl, zxcvbnm.
Degrees (now extended to 2 octaves)
# Raw Type Ratio Cents
1 256/243 ratio 256/243 90.22
2 18/17 ratio 18/17 98.95
3 2187/2048 ratio 2187/2048 113.69
4 162/149 ratio 162/149 144.82
5 54/49 ratio 54/49 168.21
6 9/8 ratio 9/8 203.91
7 32/27 ratio 32/27 294.13
8 81/68 ratio 81/68 302.86
9 19683/16384 ratio 19683/16384 317.60
10 27/22 ratio 27/22 354.55
11 81/64 ratio 81/64 407.82
12 4/3 ratio 4/3 498.04
13 2nd octave 1290.22
14 2nd octave 1298.95
15 2nd octave 1313.69
16 2nd octave 1344.82
17 2nd octave 1368.21
18 2nd octave 1403.91
19 2nd octave 1494.13
20 2nd octave 1502.86
21 2nd octave 1517.60
22 2nd octave 1554.55
23 2nd octave 1607.82
24 2nd octave 1698.04