7L 12s
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| Brightest mode | LsLssLssLsLssLssLss | |
| Period | 2/1 | |
| Range for bright generator | 8\19 (505.3¢) to 3\7 (514.3¢) | |
| Range for dark generator | 4\7 (685.7¢) to 11\19 (694.7¢) | |
| Parent MOS | 7L 5s | |
| Daughter MOSes | 19L 7s, 7L 19s | |
| Sister MOS | 12L 7s | |
| Equal tunings | ||
| Supersoft (L:s = 4:3) | 27\64 (506.3¢) | |
| Soft (L:s = 3:2) | 19\45 (506.7¢) | |
| Semisoft (L:s = 5:3) | 30\71 (507.0¢) | |
| Basic (L:s = 2:1) | 11\26 (507.7¢) | |
| Semihard (L:s = 5:2) | 25\59 (508.5¢) | |
| Hard (L:s = 3:1) | 14\33 (509.1¢) | |
| Superhard (L:s = 4:1) | 17\40 (510.0¢) | |
7L 12s is the MOS pattern of the flattone enharmonic or mega-chromatic scale. This MOS separates its large steps by intervals of 2s-2s-2s-1s-2s-2s-1s like the familiar 12edo diatonic scale. The perfect fourth which generates it measures 8\19 (505.263 cents) to 3\7 (514.286 cents).
The flattone enharmonic scale with generator between 8\19 (505.263 cents) and 11\26 (507.692 cents) is proper.
Modes
- 18|0 LsLssLssLsLssLssLss
- 17|1 LsLssLssLssLsLssLss
- 16|2 LssLsLssLssLsLssLss
- 15|3 LssLsLssLssLssLsLss
- 14|4 LssLssLsLssLssLsLss
- 13|5 LssLssLsLssLssLssLs
- 12|6 LssLssLssLsLssLssLs
- 11|7 sLsLssLssLsLssLssLs
- 10|8 sLsLssLssLssLsLssLs
- 9|9 sLssLsLssLssLsLssLs
- 8|10 sLssLsLssLssLssLsLs
- 7|11 sLssLssLsLssLssLsLs
- 6|12 sLssLssLsLssLssLssL
- 5|13 sLssLssLssLsLssLssL
- 4|14 ssLsLssLssLsLssLssL
- 3|15 ssLsLssLssLssLsLssL
- 2|16 ssLssLsLssLssLsLssL
- 1|17 ssLssLsLssLssLssLsL
- 0|18 ssLssLssLsLssLssLsL
Scale tree
Generator ranges:
- Chroma-positive generator: 505.2632 cents (8\19) to 514.2857 cents (3\7)
- Chroma-negative generator: 685.7143 cents (4\7) to 694.7368 cents (11\19)
| Generator | Cents | L | s | L/s | Comments | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 8\19 | 505.263 | 1 | 1 | 1.000 | ||||||
| 43\102 | 505.882 | 6 | 5 | 1.200 | ||||||
| 35\83 | 506.024 | 5 | 4 | 1.250 | ||||||
| 62\147 | 506.122 | 9 | 7 | 1.286 | ||||||
| 27\64 | 506.250 | 4 | 3 | 1.333 | ||||||
| 73\173 | 506.358 | 11 | 8 | 1.375 | ||||||
| 46\109 | 506.422 | 7 | 5 | 1.400 | ||||||
| 65\154 | 506.494 | 10 | 7 | 1.428 | ||||||
| 19\45 | 506.667 | 3 | 2 | 1.500 | Flattone | |||||
| 68\161 | 506.832 | 11 | 7 | 1.571 | ||||||
| 49\116 | 506.897 | 8 | 5 | 1.600 | ||||||
| 79\187 | 506.952 | 13 | 8 | 1.625 | Golden flattone (506.9365¢) | |||||
| 30\71 | 507.042 | 5 | 3 | 1.667 | ||||||
| 71\168 | 507.143 | 12 | 7 | 1.714 | ||||||
| 41\97 | 507.216 | 7 | 4 | 1.750 | ||||||
| 52\123 | 507.317 | 9 | 5 | 1.800 | ||||||
| 11\26 | 507.692 | 2 | 1 | 2.000 | Basic 7L 12s (Generators smaller than this are proper) | |||||
| 47\111 | 508.108 | 9 | 4 | 2.250 | ||||||
| 36\85 | 508.235 | 7 | 3 | 2.333 | ||||||
| 61\144 | 508.333 | 12 | 5 | 2.400 | ||||||
| 25\59 | 508.475 | 5 | 2 | 2.500 | ||||||
| 64\151 | 508.609 | 13 | 5 | 2.600 | Unnamed golden tuning (508.6329¢) | |||||
| 39\92 | 508.696 | 8 | 3 | 2.667 | ||||||
| 53\125 | 508.800 | 11 | 4 | 2.750 | ||||||
| 14\33 | 509.091 | 3 | 1 | 3.000 | ||||||
| 45\106 | 509.434 | 10 | 3 | 3.333 | ||||||
| 31\73 | 509.589 | 7 | 2 | 3.500 | ||||||
| 48\113 | 509.735 | 11 | 3 | 3.667 | ||||||
| 17\40 | 510.000 | 4 | 1 | 4.000 | ||||||
| 37\87 | 510.345 | 9 | 2 | 4.500 | ||||||
| 20\47 | 510.638 | 5 | 1 | 5.000 | ||||||
| 23\54 | 511.111 | 6 | 1 | 6.000 | ||||||
| 3\7 | 514.286 | 1 | 0 | → inf | ||||||