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 derives from several puns and references:

• 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.
• Building on the observation that it is the 7-note (heptatonic) MOS that is the ancestor of all xL 1s scales with x>6, the name "onyx" also sounds similar to "one x", as in 1 large step and x small steps.

Scale properties

MOS data is deprecated. Please use the following templates individually: MOS intervals, MOS genchain, and MOS mode degrees

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¢).