9L 1s

← 8L 1s	9L 1s	10L 1s →
↙ 8L 2s	↓ 9L 2s	10L 2s ↘

┌╥╥╥╥╥╥╥╥╥┬┐ │║║║║║║║║║││ ││││││││││││ └┴┴┴┴┴┴┴┴┴┴┘
Scale structure
Step pattern	LLLLLLLLLs sLLLLLLLLL
Equave	2/1 (1200.0 ¢)
Period	2/1 (1200.0 ¢)
Generator size
Bright	1\10 to 1\9 (120.0 ¢ to 133.3 ¢)
Dark	8\9 to 9\10 (1066.7 ¢ to 1080.0 ¢)
TAMNAMS information
Name	sinatonic
Prefix	sina-
Abbrev.	si
Related MOS scales
Parent	1L 8s
Sister	1L 9s
Daughters	10L 9s, 9L 10s
Neutralized	8L 2s
2-Flought	19L 1s, 9L 11s
Equal tunings
Equalized (L:s = 1:1)	1\10 (120.0 ¢)
Supersoft (L:s = 4:3)	4\39 (123.1 ¢)
Soft (L:s = 3:2)	3\29 (124.1 ¢)
Semisoft (L:s = 5:3)	5\48 (125.0 ¢)
Basic (L:s = 2:1)	2\19 (126.3 ¢)
Semihard (L:s = 5:2)	5\47 (127.7 ¢)
Hard (L:s = 3:1)	3\28 (128.6 ¢)
Superhard (L:s = 4:1)	4\37 (129.7 ¢)
Collapsed (L:s = 1:0)	1\9 (133.3 ¢)

This MOS, generated by a two-third tone or small "trienthird" of 1/10edo (120 cents) to 1/9 (133.333), is called the "Grumpy" decatonic scale. It appears as the diatonic scale in temperaments such as Negri and Twothirdtonic.

1/10					120
				5/49	122.449
			4/39		123.077
				7/68	123.529
		3/29			124.138
					124.525
				8/77	124.675
					124.766
			5/48		125
					125.296
				7/67	125.373
	2/19				126.316
				7/66	127.273
			5/47		127.66
					127.905
				8/75	128
					128.097
		3/28			128.571
					128.779
				7/65	129.231
			4/37		129.73
				5/46	130.435
1/9					133.333