9L 7s
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Step pattern
LLsLsLsLLsLsLsLs
sLsLsLsLLsLsLsLL
Equave
2/1 (1200.0 ¢)
Period
2/1 (1200.0 ¢)
Bright
7\16 to 4\9 (525.0 ¢ to 533.3 ¢)
Dark
5\9 to 9\16 (666.7 ¢ to 675.0 ¢)
Descends from
7L 2s (armotonic)
Ancestor's step ratio range
1:1 to 2:1 (soft-of-basic)
Parent
7L 2s
Sister
7L 9s
Daughters
16L 9s, 9L 16s
Neutralized
2L 14s
2-Flought
25L 7s, 9L 23s
Equalized (L:s = 1:1)
7\16 (525.0 ¢)
Supersoft (L:s = 4:3)
25\57 (526.3 ¢)
Soft (L:s = 3:2)
18\41 (526.8 ¢)
Semisoft (L:s = 5:3)
29\66 (527.3 ¢)
Basic (L:s = 2:1)
11\25 (528.0 ¢)
Semihard (L:s = 5:2)
26\59 (528.8 ¢)
Hard (L:s = 3:1)
15\34 (529.4 ¢)
Superhard (L:s = 4:1)
19\43 (530.2 ¢)
Collapsed (L:s = 1:0)
4\9 (533.3 ¢)
| ↖ 8L 6s | ↑ 9L 6s | 10L 6s ↗ |
| ← 8L 7s | 9L 7s | 10L 7s → |
| ↙ 8L 8s | ↓ 9L 8s | 10L 8s ↘ |
┌╥╥┬╥┬╥┬╥╥┬╥┬╥┬╥┬┐ │║║│║│║│║║│║│║│║││ ││││││││││││││││││ └┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┘
Scale structure
sLsLsLsLLsLsLsLL
Generator size
TAMNAMS information
Related MOS scales
Equal tunings
9L 7s is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 9 large steps and 7 small steps, repeating every octave. 9L 7s is a child scale of 7L 2s, expanding it by 7 tones. Generators that produce this scale range from 525 ¢ to 533.3 ¢, or from 666.7 ¢ to 675 ¢.
Scale properties
- This article uses TAMNAMS conventions for the names of this scale's intervals and scale degrees. The use of 1-indexed ordinal names is reserved for diatonic interval categories.
{{subst:MOS data temporary}}
Scale tree
| Generator(edo) | Cents | Step ratio | Comments | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bright | Dark | L:s | Hardness | |||||||
| 7\16 | 525.000 | 675.000 | 1:1 | 1.000 | Equalized 9L 7s | |||||
| 39\89 | 525.843 | 674.157 | 6:5 | 1.200 | ||||||
| 32\73 | 526.027 | 673.973 | 5:4 | 1.250 | ||||||
| 57\130 | 526.154 | 673.846 | 9:7 | 1.286 | Armodue is around here | |||||
| 25\57 | 526.316 | 673.684 | 4:3 | 1.333 | Supersoft 9L 7s | |||||
| 68\155 | 526.452 | 673.548 | 11:8 | 1.375 | ||||||
| 43\98 | 526.531 | 673.469 | 7:5 | 1.400 | Trismegistus is around here | |||||
| 61\139 | 526.619 | 673.381 | 10:7 | 1.429 | ||||||
| 18\41 | 526.829 | 673.171 | 3:2 | 1.500 | Soft 9L 7s | |||||
| 65\148 | 527.027 | 672.973 | 11:7 | 1.571 | ||||||
| 47\107 | 527.103 | 672.897 | 8:5 | 1.600 | ||||||
| 76\173 | 527.168 | 672.832 | 13:8 | 1.625 | ||||||
| 29\66 | 527.273 | 672.727 | 5:3 | 1.667 | Semisoft 9L 7s | |||||
| 69\157 | 527.389 | 672.611 | 12:7 | 1.714 | ||||||
| 40\91 | 527.473 | 672.527 | 7:4 | 1.750 | ||||||
| 51\116 | 527.586 | 672.414 | 9:5 | 1.800 | ||||||
| 11\25 | 528.000 | 672.000 | 2:1 | 2.000 | Basic 9L 7s Scales with tunings softer than this are proper | |||||
| 48\109 | 528.440 | 671.560 | 9:4 | 2.250 | ||||||
| 37\84 | 528.571 | 671.429 | 7:3 | 2.333 | ||||||
| 63\143 | 528.671 | 671.329 | 12:5 | 2.400 | ||||||
| 26\59 | 528.814 | 671.186 | 5:2 | 2.500 | Semihard 9L 7s | |||||
| 67\152 | 528.947 | 671.053 | 13:5 | 2.600 | ||||||
| 41\93 | 529.032 | 670.968 | 8:3 | 2.667 | ||||||
| 56\127 | 529.134 | 670.866 | 11:4 | 2.750 | ||||||
| 15\34 | 529.412 | 670.588 | 3:1 | 3.000 | Hard 9L 7s | |||||
| 49\111 | 529.730 | 670.270 | 10:3 | 3.333 | Mabila (5-limit) is around here | |||||
| 34\77 | 529.870 | 670.130 | 7:2 | 3.500 | ||||||
| 53\120 | 530.000 | 670.000 | 11:3 | 3.667 | Amavil is around here | |||||
| 19\43 | 530.233 | 669.767 | 4:1 | 4.000 | Superhard 9L 7s | |||||
| 42\95 | 530.526 | 669.474 | 9:2 | 4.500 | ||||||
| 23\52 | 530.769 | 669.231 | 5:1 | 5.000 | ||||||
| 27\61 | 531.148 | 668.852 | 6:1 | 6.000 | ||||||
| 4\9 | 533.333 | 666.667 | 1:0 | → ∞ | Collapsed 9L 7s | |||||
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