12L 2s
12L 2s is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 12 large steps and 2 small steps, with a period of 6 large steps and 1 small step that repeats every 600.0 ¢, or twice every octave. 12L 2s is a grandchild scale of 2L 8s, expanding it by 4 tones. Generators that produce this scale range from 85.7 ¢ to 100 ¢, or from 500 ¢ to 514.3 ¢. Scales of the true MOS form, where every period is the same, are proper because there is only one small step per period.
| ↖ 11L 1s | ↑ 12L 1s | 13L 1s ↗ |
| ← 11L 2s | 12L 2s | 13L 2s → |
| ↙ 11L 3s | ↓ 12L 3s | 13L 3s ↘ |
Scale structure
sLLLLLLsLLLLLL
Generator size
TAMNAMS information
Related MOS scales
Equal tunings
It appears as the mega chromatic scale of injera temperament, meaning that its harmonic entropy is where +4 generators equals 5/4 (simple) or +10 generators equals 5/3 (complex).
Modes
| UDP | Cyclic order |
Step pattern |
|---|---|---|
| 12|0(2) | 1 | LLLLLLsLLLLLLs |
| 10|2(2) | 2 | LLLLLsLLLLLLsL |
| 8|4(2) | 3 | LLLLsLLLLLLsLL |
| 6|6(2) | 4 | LLLsLLLLLLsLLL |
| 4|8(2) | 5 | LLsLLLLLLsLLLL |
| 2|10(2) | 6 | LsLLLLLLsLLLLL |
| 0|12(2) | 7 | sLLLLLLsLLLLLL |
Intervals
| Intervals | Steps subtended |
Range in cents | ||
|---|---|---|---|---|
| Generic | Specific | Abbrev. | ||
| 0-mosstep | Perfect 0-mosstep | P0ms | 0 | 0.0 ¢ |
| 1-mosstep | Diminished 1-mosstep | d1ms | s | 0.0 ¢ to 85.7 ¢ |
| Perfect 1-mosstep | P1ms | L | 85.7 ¢ to 100.0 ¢ | |
| 2-mosstep | Minor 2-mosstep | m2ms | L + s | 100.0 ¢ to 171.4 ¢ |
| Major 2-mosstep | M2ms | 2L | 171.4 ¢ to 200.0 ¢ | |
| 3-mosstep | Minor 3-mosstep | m3ms | 2L + s | 200.0 ¢ to 257.1 ¢ |
| Major 3-mosstep | M3ms | 3L | 257.1 ¢ to 300.0 ¢ | |
| 4-mosstep | Minor 4-mosstep | m4ms | 3L + s | 300.0 ¢ to 342.9 ¢ |
| Major 4-mosstep | M4ms | 4L | 342.9 ¢ to 400.0 ¢ | |
| 5-mosstep | Minor 5-mosstep | m5ms | 4L + s | 400.0 ¢ to 428.6 ¢ |
| Major 5-mosstep | M5ms | 5L | 428.6 ¢ to 500.0 ¢ | |
| 6-mosstep | Perfect 6-mosstep | P6ms | 5L + s | 500.0 ¢ to 514.3 ¢ |
| Augmented 6-mosstep | A6ms | 6L | 514.3 ¢ to 600.0 ¢ | |
| 7-mosstep | Perfect 7-mosstep | P7ms | 6L + s | 600.0 ¢ |
| 8-mosstep | Diminished 8-mosstep | d8ms | 6L + 2s | 600.0 ¢ to 685.7 ¢ |
| Perfect 8-mosstep | P8ms | 7L + s | 685.7 ¢ to 700.0 ¢ | |
| 9-mosstep | Minor 9-mosstep | m9ms | 7L + 2s | 700.0 ¢ to 771.4 ¢ |
| Major 9-mosstep | M9ms | 8L + s | 771.4 ¢ to 800.0 ¢ | |
| 10-mosstep | Minor 10-mosstep | m10ms | 8L + 2s | 800.0 ¢ to 857.1 ¢ |
| Major 10-mosstep | M10ms | 9L + s | 857.1 ¢ to 900.0 ¢ | |
| 11-mosstep | Minor 11-mosstep | m11ms | 9L + 2s | 900.0 ¢ to 942.9 ¢ |
| Major 11-mosstep | M11ms | 10L + s | 942.9 ¢ to 1000.0 ¢ | |
| 12-mosstep | Minor 12-mosstep | m12ms | 10L + 2s | 1000.0 ¢ to 1028.6 ¢ |
| Major 12-mosstep | M12ms | 11L + s | 1028.6 ¢ to 1100.0 ¢ | |
| 13-mosstep | Perfect 13-mosstep | P13ms | 11L + 2s | 1100.0 ¢ to 1114.3 ¢ |
| Augmented 13-mosstep | A13ms | 12L + s | 1114.3 ¢ to 1200.0 ¢ | |
| 14-mosstep | Perfect 14-mosstep | P14ms | 12L + 2s | 1200.0 ¢ |
Scale tree
| Generator(edo) | Cents | Step ratio | Comments(always proper) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bright | Dark | L:s | Hardness | |||||||
| 1\14 | 85.714 | 514.286 | 1:1 | 1.000 | Equalized 12L 2s | |||||
| 6\82 | 87.805 | 512.195 | 6:5 | 1.200 | ||||||
| 5\68 | 88.235 | 511.765 | 5:4 | 1.250 | ||||||
| 9\122 | 88.525 | 511.475 | 9:7 | 1.286 | ||||||
| 4\54 | 88.889 | 511.111 | 4:3 | 1.333 | Supersoft 12L 2s | |||||
| 11\148 | 89.189 | 510.811 | 11:8 | 1.375 | ||||||
| 7\94 | 89.362 | 510.638 | 7:5 | 1.400 | ||||||
| 10\134 | 89.552 | 510.448 | 10:7 | 1.429 | ||||||
| 3\40 | 90.000 | 510.000 | 3:2 | 1.500 | Soft 12L 2s | |||||
| 11\146 | 90.411 | 509.589 | 11:7 | 1.571 | ||||||
| 8\106 | 90.566 | 509.434 | 8:5 | 1.600 | ||||||
| 13\172 | 90.698 | 509.302 | 13:8 | 1.625 | ||||||
| 5\66 | 90.909 | 509.091 | 5:3 | 1.667 | Semisoft 12L 2s | |||||
| 12\158 | 91.139 | 508.861 | 12:7 | 1.714 | ||||||
| 7\92 | 91.304 | 508.696 | 7:4 | 1.750 | ||||||
| 9\118 | 91.525 | 508.475 | 9:5 | 1.800 | ||||||
| 2\26 | 92.308 | 507.692 | 2:1 | 2.000 | Basic 12L 2s | |||||
| 9\116 | 93.103 | 506.897 | 9:4 | 2.250 | ||||||
| 7\90 | 93.333 | 506.667 | 7:3 | 2.333 | ||||||
| 12\154 | 93.506 | 506.494 | 12:5 | 2.400 | ||||||
| 5\64 | 93.750 | 506.250 | 5:2 | 2.500 | Semihard 12L 2s | |||||
| 13\166 | 93.976 | 506.024 | 13:5 | 2.600 | ||||||
| 8\102 | 94.118 | 505.882 | 8:3 | 2.667 | ||||||
| 11\140 | 94.286 | 505.714 | 11:4 | 2.750 | ||||||
| 3\38 | 94.737 | 505.263 | 3:1 | 3.000 | Hard 12L 2s Injera | |||||
| 10\126 | 95.238 | 504.762 | 10:3 | 3.333 | ||||||
| 7\88 | 95.455 | 504.545 | 7:2 | 3.500 | ||||||
| 11\138 | 95.652 | 504.348 | 11:3 | 3.667 | ||||||
| 4\50 | 96.000 | 504.000 | 4:1 | 4.000 | Superhard 12L 2s | |||||
| 9\112 | 96.429 | 503.571 | 9:2 | 4.500 | ||||||
| 5\62 | 96.774 | 503.226 | 5:1 | 5.000 | ||||||
| 6\74 | 97.297 | 502.703 | 6:1 | 6.000 | ||||||
| 1\12 | 100.000 | 500.000 | 1:0 | → ∞ | Collapsed 12L 2s | |||||