1L 6s

	↑ 1L 5s	2L 5s ↗
	1L 6s	2L 6s →
	↓ 1L 7s	2L 7s ↘

┌╥┬┬┬┬┬┬┐ │║│││││││ │││││││││ └┴┴┴┴┴┴┴┘
Scale structure
Step pattern	Lssssss ssssssL
Equave	2/1 (1200.0 ¢)
Period	2/1 (1200.0 ¢)
Generator size
Bright	6\7 to 1\1 (1028.6 ¢ to 1200.0 ¢)
Dark	0\1 to 1\7 (0.0 ¢ to 171.4 ¢)
TAMNAMS information
Name	onyx
Prefix	on-
Abbrev.	on
Related MOS scales
Parent	1L 5s
Sister	6L 1s
Daughters	7L 1s, 1L 7s
Neutralized	2L 5s
2-Flought	8L 6s, 1L 13s
Equal tunings
Equalized (L:s = 1:1)	6\7 (1028.6 ¢)
Supersoft (L:s = 4:3)	19\22 (1036.4 ¢)
Soft (L:s = 3:2)	13\15 (1040.0 ¢)
Semisoft (L:s = 5:3)	20\23 (1043.5 ¢)
Basic (L:s = 2:1)	7\8 (1050.0 ¢)
Semihard (L:s = 5:2)	15\17 (1058.8 ¢)
Hard (L:s = 3:1)	8\9 (1066.7 ¢)
Superhard (L:s = 4:1)	9\10 (1080.0 ¢)
Collapsed (L:s = 1:0)	1\1 (1200.0 ¢)

1L 6s, named onyx in TAMNAMS, is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 1 large step and 6 small steps, repeating every octave. Generators that produce this scale range from 1028.6 ¢ to 1200 ¢, or from 0 ¢ to 171.4 ¢.

Name

TAMNAMS suggests the temperament-agnostic name onyx for this scale. The name comes from a lot of naming puns and references, namely:

• The name sounds like its step counts of one large step and six small steps.
• Onyxes come in different colors and types, which is a metaphor for this scale's generator range being quite large and containing the generator ranges of other MOS scales, such as 7L 1s, 8L 1s, and 9L 1s.

Theory

Low harmonic entropy scales

There is one notable harmonic entropy minimum: porcupine, in which the generator is around 150¢ to 170¢, two generators make a 6/5 (315.6¢), and three make a 4/3 (498¢).

Modes

Scale degrees of the modes of 1L 6s

UDP	Cyclic order	Step pattern	Scale degree (ondegree)
			0	1	2	3	4	5	6	7
6|0	1	Lssssss	Perf.	Aug.	Maj.	Maj.	Maj.	Maj.	Perf.	Perf.
5|1	7	sLsssss	Perf.	Perf.	Maj.	Maj.	Maj.	Maj.	Perf.	Perf.
4|2	6	ssLssss	Perf.	Perf.	Min.	Maj.	Maj.	Maj.	Perf.	Perf.
3|3	5	sssLsss	Perf.	Perf.	Min.	Min.	Maj.	Maj.	Perf.	Perf.
2|4	4	ssssLss	Perf.	Perf.	Min.	Min.	Min.	Maj.	Perf.	Perf.
1|5	3	sssssLs	Perf.	Perf.	Min.	Min.	Min.	Min.	Perf.	Perf.
0|6	2	ssssssL	Perf.	Perf.	Min.	Min.	Min.	Min.	Dim.	Perf.

Proposed Names

Mode names are from Porcupine temperament modal harmony, proposed by William Lynch. Descriptive mode names reference the page's original descriptions of the modes.

Mode	UDP	Mode name	Descriptive mode name
Lssssss	6|0	chinchillian	Bright major
sLsssss	5|1	badgerian	Dark major
ssLssss	4|2	zebrian	Bright minor
sssLsss	3|3	dingoian	Symmetric minor
ssssLss	2|4	gazellian	Bright diminished
sssssLs	1|5	lemurian	Dark diminished
ssssssL	0|6	pandian	Magical seventh