↖ 8L 12s ↑ 9L 12s 10L 12s ↗
← 8L 13s 9L 13s 10L 13s →
↙ 8L 14s ↓ 9L 14s 10L 14s ↘
┌╥┬╥┬╥┬┬╥┬╥┬┬╥┬╥┬┬╥┬╥┬┬┐
│║│║│║││║│║││║│║││║│║│││
││││││││││││││││││││││││
└┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┘
Scale structure
Step pattern LsLsLssLsLssLsLssLsLss
ssLsLssLsLssLsLssLsLsL
Equave 2/1 (1200.0 ¢)
Period 2/1 (1200.0 ¢)
Generator size
Bright 17\22 to 7\9 (927.3 ¢ to 933.3 ¢)
Dark 2\9 to 5\22 (266.7 ¢ to 272.7 ¢)
TAMNAMS information
Related to 4L 5s (gramitonic)
With tunings 1:1 to 3:2 (soft)
Related MOS scales
Parent 9L 4s
Sister 13L 9s
Daughters 22L 9s, 9L 22s
Neutralized 18L 4s
2-Flought 31L 13s, 9L 35s
Equal tunings
Equalized (L:s = 1:1) 17\22 (927.3 ¢)
Supersoft (L:s = 4:3) 58\75 (928.0 ¢)
Soft (L:s = 3:2) 41\53 (928.3 ¢)
Semisoft (L:s = 5:3) 65\84 (928.6 ¢)
Basic (L:s = 2:1) 24\31 (929.0 ¢)
Semihard (L:s = 5:2) 55\71 (929.6 ¢)
Hard (L:s = 3:1) 31\40 (930.0 ¢)
Superhard (L:s = 4:1) 38\49 (930.6 ¢)
Collapsed (L:s = 1:0) 7\9 (933.3 ¢)

9L 13s is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 9 large steps and 13 small steps, repeating every octave. 9L 13s is a grandchild scale of 4L 5s, expanding it by 13 tones. Generators that produce this scale range from 927.3 ¢ to 933.3 ¢, or from 266.7 ¢ to 272.7 ¢.

Scale tree

5/22 272,727
22/97 272.165
17/75 272
29/128 271.875
12/53 271.698
271.58
31/137 271.533
271.504
19/84 271.429
271.331
26/115 271.304
7/31 270.968
23/102 270.588
16/71 270.4225
270.313
25/111 270.27
270.226
9/40 270
269.897
20/89 269.669
11/49 269.388
13/58 268.9655
2/9 266.667