6L 3s

↖ 5L 2s	↑ 6L 2s	7L 2s ↗
← 5L 3s	6L 3s	7L 3s →
↙ 5L 4s	↓ 6L 4s	7L 4s ↘

┌╥╥┬╥╥┬╥╥┬┐ │║║│║║│║║││ │││││││││││ └┴┴┴┴┴┴┴┴┴┘
Scale structure
Step pattern	LLsLLsLLs sLLsLLsLL
Equave	2/1 (1200.0¢)
Period	1\3 (400.0¢)
Generator size
Bright	1\9 to 1\6 (133.3¢ to 200.0¢)
Dark	1\6 to 2\9 (200.0¢ to 266.7¢)
Related MOS scales
Parent	3L 3s
Sister	3L 6s
Daughters	9L 6s, 6L 9s
Neutralized	3L 6s
2-Flought	15L 3s, 6L 12s
Equal tunings
Equalized (L:s = 1:1)	1\9 (133.3¢)
Supersoft (L:s = 4:3)	4\33 (145.5¢)
Soft (L:s = 3:2)	3\24 (150.0¢)
Semisoft (L:s = 5:3)	5\39 (153.8¢)
Basic (L:s = 2:1)	2\15 (160.0¢)
Semihard (L:s = 5:2)	5\36 (166.7¢)
Hard (L:s = 3:1)	3\21 (171.4¢)
Superhard (L:s = 4:1)	4\27 (177.8¢)
Collapsed (L:s = 1:0)	1\6 (200.0¢)

6L 3s is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 6 large steps and 3 small steps, with a period of 2 large steps and 1 small step that repeats every 400.0¢, or 3 times every octave. Generators that produce this scale range from 133.3¢ to 200¢, or from 200¢ to 266.7¢. Scales of the true MOS form, where every period is the same, are proper because there is only one small step per period.

The tiny region between 26\171 and 281\1848 is the terrain region, giving the albitonic scale for the remarkable terrain temperament chromatic pair. If you feel that is too small a region to allocate or prefer EDOs of a more usual size, you can call it the region between 5\33 and 6\39, but that misses the extreme accuracy of this temperament.

For a more approachable temperament, try triforce.

Intervals

Intervals of 6L 3s

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 133.3¢
	Perfect 1-mosstep	P1ms	L	133.3¢ to 200.0¢
2-mosstep	Perfect 2-mosstep	P2ms	L + s	200.0¢ to 266.7¢
	Augmented 2-mosstep	A2ms	2L	266.7¢ to 400.0¢
3-mosstep	Perfect 3-mosstep	P3ms	2L + s	400.0¢
4-mosstep	Diminished 4-mosstep	d4ms	2L + 2s	400.0¢ to 533.3¢
	Perfect 4-mosstep	P4ms	3L + s	533.3¢ to 600.0¢
5-mosstep	Perfect 5-mosstep	P5ms	3L + 2s	600.0¢ to 666.7¢
	Augmented 5-mosstep	A5ms	4L + s	666.7¢ to 800.0¢
6-mosstep	Perfect 6-mosstep	P6ms	4L + 2s	800.0¢
7-mosstep	Diminished 7-mosstep	d7ms	4L + 3s	800.0¢ to 933.3¢
	Perfect 7-mosstep	P7ms	5L + 2s	933.3¢ to 1000.0¢
8-mosstep	Perfect 8-mosstep	P8ms	5L + 3s	1000.0¢ to 1066.7¢
	Augmented 8-mosstep	A8ms	6L + 2s	1066.7¢ to 1200.0¢
9-mosstep	Perfect 9-mosstep	P9ms	6L + 3s	1200.0¢

Modes

Scale degrees of the modes of 6L 3s 

UDP	Cyclic order	Step pattern	Scale degree (mosdegree)
			0	1	2	3	4	5	6	7	8	9
6|0(3)	1	LLsLLsLLs	Perf.	Perf.	Aug.	Perf.	Perf.	Aug.	Perf.	Perf.	Aug.	Perf.
3|3(3)	2	LsLLsLLsL	Perf.	Perf.	Perf.	Perf.	Perf.	Perf.	Perf.	Perf.	Perf.	Perf.
0|6(3)	3	sLLsLLsLL	Perf.	Dim.	Perf.	Perf.	Dim.	Perf.	Perf.	Dim.	Perf.	Perf.

Scales

• Triphi – L:s = φ tuning
• Terrain9 – 3558edo tuning

Scale tree

Generator ranges:

• Chroma-positive generator: 133.3333 cents (1\9) to 200 cents (1\6)
• Chroma-negative generator: 200 cents (1\6) to 266.6667 cents (2\9)

Generator						Cents	L	s	L/s	Comments
1\9						133.333	1	1	1.000
					6\51	141.176	6	5	1.200
				5\42		142.857	5	4	1.250
					9\75	144.000	9	7	1.286
			4\33			145.455	4	3	1.333
					11\90	146.667	11	8	1.375
				7\57		147.368	7	5	1.400
					10\81	148.148	10	7	1.429
		3\24				150.000	3	2	1.500
					11\87	151.724	11	7	1.571	Hemimist
				8\63		152.381	8	5	1.600
					13\102	152.911	13	8	1.625	Golden triforce (152.7864¢)
			5\39			153.846	5	3	1.667
					12\93	154.839	12	7	1.714
				7\54		155.556	7	4	1.750
					9\69	156.522	9	5	1.800
	2\15					160.000	2	1	2.000	Basic hyrulic
					9\66	163.636	9	4	2.250
				7\51		164.706	7	3	2.333
					12\87	165.517	12	5	2.400
			5\36			166.667	5	2	2.500
					13\93	167.742	13	5	2.600	Unnamed golden tuning (167.9285¢)
				8\57		168.421	8	3	2.667
					11\78	169.231	11	4	2.750
		3\21				171.439	3	1	3.000
					10\69	173.913	10	3	3.333
				7\48		175.000	7	2	3.500
					11\75	176.000	11	3	3.667	Oodako
			4\27			177.778	4	1	4.000
					9\60	180.000	9	2	4.500
				5\33		181.818	5	1	5.000
					6\39	184.615	6	1	6.000	Mirkat
1\6						200.000	1	0	→ inf