3L 6s
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Scale structure
Step pattern
LssLssLss
ssLssLssL
Equave
2/1 (1200.0¢)
Period
1\3 (400.0¢)
Generator size
Bright
2\9 to 1\3 (266.7¢ to 400.0¢)
Dark
0\3 to 1\9 (0.0¢ to 133.3¢)
TAMNAMS information
Name
tcherepnin
Prefix
cher-
Abbrev.
ch
Related MOS scales
Parent
3L 3s
Sister
6L 3s
Daughters
9L 3s
3L 9s
Equal tunings
Equalized (L:s = 1:1)
2\9 (266.7¢)
Supersoft (L:s = 4:3)
7\30 (280.0¢)
Soft (L:s = 3:2)
5\21 (285.7¢)
Semisoft (L:s = 5:3)
8\33 (290.9¢)
Basic (L:s = 2:1)
3\12 (300.0¢)
Semihard (L:s = 5:2)
7\27 (311.1¢)
Hard (L:s = 3:1)
4\15 (320.0¢)
Superhard (L:s = 4:1)
5\18 (333.3¢)
Collapsed (L:s = 1:0)
1\3 (400.0¢)
| ↖2L 5s | ↑3L 5s | 4L 5s↗ |
| ←2L 6s | 3L 6s | 4L 6s→ |
| ↙2L 7s | ↓3L 7s | 4L 7s↘ |
┌╥┬┬╥┬┬╥┬┬┐ │║││║││║│││ │││││││││││ └┴┴┴┴┴┴┴┴┴┘
ssLssLssL
3L 9s
3L 6s, named tcherepnin in TAMNAMS, is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 3 large steps and 6 small steps, with a period of 1 large step and 2 small steps that repeats every 400.0¢, or 3 times every octave. Generators that produce this scale range from 266.7¢ to 400¢, or from 0¢ to 133.3¢.
Name
TAMNAMS suggests the temperaement-agnostic name tcherepnin for this scale. This is named after Alexander Tcherepnin's 9-note scale which, in 12edo, is notated as C Db Eb E F G Ab A B C, forming the step pattern of HWHHWHHWH in standard notation (assuming a root of C).
Modes
| UDP | Rotational order | Step pattern |
|---|---|---|
| 6|0(3) | 1 | LssLssLss |
| 3|3(3) | 3 | sLssLssLs |
| 0|6(3) | 2 | ssLssLssL |
Scale tree
| Generator (edo) | Cents | Step ratio | Comments | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bright | Dark | L:s | Hardness | |||||||
| 2\9 | 266.667 | 133.333 | 1:1 | 1.000 | Equalized 3L 6s | |||||
| 11\48 | 275.000 | 125.000 | 6:5 | 1.200 | ||||||
| 9\39 | 276.923 | 123.077 | 5:4 | 1.250 | ||||||
| 16\69 | 278.261 | 121.739 | 9:7 | 1.286 | ||||||
| 7\30 | 280.000 | 120.000 | 4:3 | 1.333 | Supersoft 3L 6s | |||||
| 19\81 | 281.481 | 118.519 | 11:8 | 1.375 | ||||||
| 12\51 | 282.353 | 117.647 | 7:5 | 1.400 | ||||||
| 17\72 | 283.333 | 116.667 | 10:7 | 1.429 | ||||||
| 5\21 | 285.714 | 114.286 | 3:2 | 1.500 | Soft 3L 6s | |||||
| 18\75 | 288.000 | 112.000 | 11:7 | 1.571 | ||||||
| 13\54 | 288.889 | 111.111 | 8:5 | 1.600 | ||||||
| 21\87 | 289.655 | 110.345 | 13:8 | 1.625 | ||||||
| 8\33 | 290.909 | 109.091 | 5:3 | 1.667 | Semisoft 3L 6s | |||||
| 19\78 | 292.308 | 107.692 | 12:7 | 1.714 | ||||||
| 11\45 | 293.333 | 106.667 | 7:4 | 1.750 | ||||||
| 14\57 | 294.737 | 105.263 | 9:5 | 1.800 | August | |||||
| 3\12 | 300.000 | 100.000 | 2:1 | 2.000 | Basic 3L 6s Scales with tunings softer than this are proper | |||||
| 13\51 | 305.882 | 94.118 | 9:4 | 2.250 | ||||||
| 10\39 | 307.692 | 92.308 | 7:3 | 2.333 | ||||||
| 17\66 | 309.091 | 90.909 | 12:5 | 2.400 | Augene | |||||
| 7\27 | 311.111 | 88.889 | 5:2 | 2.500 | Semihard 3L 6s | |||||
| 18\69 | 313.043 | 86.957 | 13:5 | 2.600 | ||||||
| 11\42 | 314.286 | 85.714 | 8:3 | 2.667 | ||||||
| 15\57 | 315.789 | 84.211 | 11:4 | 2.750 | August | |||||
| 4\15 | 320.000 | 80.000 | 3:1 | 3.000 | Hard 3L 6s | |||||
| 13\48 | 325.000 | 75.000 | 10:3 | 3.333 | Inflated | |||||
| 9\33 | 327.273 | 72.727 | 7:2 | 3.500 | ||||||
| 14\51 | 329.412 | 70.588 | 11:3 | 3.667 | ||||||
| 5\18 | 333.333 | 66.667 | 4:1 | 4.000 | Superhard 3L 6s | |||||
| 11\39 | 338.462 | 61.538 | 9:2 | 4.500 | ||||||
| 6\21 | 342.857 | 57.143 | 5:1 | 5.000 | ||||||
| 7\24 | 350.000 | 50.000 | 6:1 | 6.000 | Hemiug, hemiaug↓ | |||||
| 1\3 | 400.000 | 0.000 | 1:0 | → ∞ | Collapsed 3L 6s | |||||
External links
- Piano Encyclopedia, on Tcherepnin's 9-note scale: https://pianoencyclopedia.com/scales/tcherepnin-nine-note-mode-i/