4L 3s (3/1-equivalent)

4L 3s<3/1> (or electric) refers to a tritave-repeating MOS scale with four large steps and three small steps. It is generated by any interval between 1\4edt and 2\7edt.

↖ 3L 2s⟨3/1⟩	↑ 4L 2s⟨3/1⟩	5L 2s⟨3/1⟩ ↗
← 3L 3s⟨3/1⟩	4L 3s (3/1-equivalent)	5L 3s⟨3/1⟩ →
↙ 3L 4s⟨3/1⟩	↓ 4L 4s⟨3/1⟩	5L 4s⟨3/1⟩ ↘

Scale structure
Step pattern	LLsLsLs sLsLsLL
Equave	3/1 (1902.0 ¢)
Period	3/1 (1902.0 ¢)
Generator size(edt)
Bright	5\7 to 3\4 (1358.5 ¢ to 1426.5 ¢)
Dark	1\4 to 2\7 (475.5 ¢ to 543.4 ¢)
Related MOS scales
Parent	3L 1s⟨3/1⟩
Sister	3L 4s⟨3/1⟩
Daughters	7L 4s⟨3/1⟩, 4L 7s⟨3/1⟩
Neutralized	1L 6s⟨3/1⟩
2-Flought	11L 3s⟨3/1⟩, 4L 10s⟨3/1⟩
Equal tunings(edt)
Equalized (L:s = 1:1)	5\7 (1358.5 ¢)
Supersoft (L:s = 4:3)	18\25 (1369.4 ¢)
Soft (L:s = 3:2)	13\18 (1373.6 ¢)
Semisoft (L:s = 5:3)	21\29 (1377.3 ¢)
Basic (L:s = 2:1)	8\11 (1383.2 ¢)
Semihard (L:s = 5:2)	19\26 (1389.9 ¢)
Hard (L:s = 3:1)	11\15 (1394.8 ¢)
Superhard (L:s = 4:1)	14\19 (1401.4 ¢)
Collapsed (L:s = 1:0)	3\4 (1426.5 ¢)
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Temperaments

4L 3s<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.

Modes

Mode	UDP	Name
LLsLsLs	6|0
LsLLsLs	5|1
LsLsLLs	4|2
LsLsLsL	3|3
sLLsLsL	2|4
sLsLLsL	1|5
sLsLsLL	0|6

Scales

Generator (chroma-positive)	Cents (chroma-positive)	Cents (chroma-negative)	L	s	L/s	Comments
5\7edt	1358.539	543.416	1	1	1.000
18\25edt	1369.41	532.55	4	3	1.333	Electra is in this region
13\18edt	1373.634	528.321	3	2	1.500
21\29edt	1377.2778	524.6772	5	3	1.667
8\11edt	1383.2	518.7	2	1	2.000	Basic electric (generators smaller than this are proper)
19\26edt	1389.9	512.1	5	2	2.500
11\15edt	1394.767	507.188	3	1	3.000
14\19edt	1401.441	500.514	4	1	4.000
17\23edt	1405.7928	496.1622	5	1	5.000
3\4edt	1426.4663	475.4888	1	0	-> inf