7L 4s (3/1-equivalent)
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Scale structure
Step pattern
LLsLLsLLsLs
sLsLLsLLsLL
Equave
3/1 (1902.0¢)
Period
3/1 (1902.0¢)
Generator size(edt)
Bright
3\11 to 2\7 (518.7¢ to 543.4¢)
Dark
5\7 to 8\11 (1358.5¢ to 1383.2¢)
Related MOS scales
Parent
4L 3s⟨3/1⟩
Sister
4L 7s⟨3/1⟩
Daughters
11L 7s⟨3/1⟩, 7L 11s⟨3/1⟩
Neutralized
3L 8s⟨3/1⟩
2-Flought
18L 4s⟨3/1⟩, 7L 15s⟨3/1⟩
Equal tunings(edt)
Equalized (L:s = 1:1)
3\11 (518.7¢)
Supersoft (L:s = 4:3)
11\40 (523.0¢)
Soft (L:s = 3:2)
8\29 (524.7¢)
Semisoft (L:s = 5:3)
13\47 (526.1¢)
Basic (L:s = 2:1)
5\18 (528.3¢)
Semihard (L:s = 5:2)
12\43 (530.8¢)
Hard (L:s = 3:1)
7\25 (532.5¢)
Superhard (L:s = 4:1)
9\32 (534.9¢)
Collapsed (L:s = 1:0)
2\7 (543.4¢)
WIP
↖ 6L 3s⟨3/1⟩ | ↑ 7L 3s⟨3/1⟩ | 8L 3s⟨3/1⟩ ↗ |
← 6L 4s⟨3/1⟩ | 7L 4s (3/1-equivalent) | 8L 4s⟨3/1⟩ → |
↙ 6L 5s⟨3/1⟩ | ↓ 7L 5s⟨3/1⟩ | 8L 5s⟨3/1⟩ ↘ |
┌╥╥┬╥╥┬╥╥┬╥┬┐ │║║│║║│║║│║││ │││││││││││││ └┴┴┴┴┴┴┴┴┴┴┴┘
sLsLLsLLsLL
7L 4s<3/1> (or superelectric) refers to a tritave-repeating MOS scale with seven large steps and four small steps. It is generated by any interval between 3\11edt and 2\7edt.
Temperaments
7L 4s<3/1> MOS scales can be used for the Electra temperament, in which three generators down is approximately 13/11 and one generator up is approximately 15/11. If 11:13:15 is treated as the fundamental sonority of no-2's music, then Electra can be viewed as the analogue to meantone and 7L 4s<3/1> can be viewed as the analogue to the meantone chromatic scale.