# 8L 9s

 ↖ 7L 8s ↑8L 8s 9L 8s ↗ ← 7L 9s 8L 9s 9L 9s → ↙ 7L 10s ↓8L 10s 9L 10s ↘
```┌╥┬╥┬╥┬╥┬╥┬╥┬╥┬╥┬┬┐
│║│║│║│║│║│║│║│║│││
│││││││││││││││││││
└┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┴┘```
Scale structure
Step pattern LsLsLsLsLsLsLsLss
ssLsLsLsLsLsLsLsL
Equave 2/1 (1200.0¢)
Period 2/1 (1200.0¢)
Generator size
Bright 2\17 to 1\8 (141.2¢ to 150.0¢)
Dark 7\8 to 15\17 (1050.0¢ to 1058.8¢)
TAMNAMS information
Descends from 8L 1s (subneutralic)
Required step ratio range 2:1 to 1:0 (hard-of-basic)
Related MOS scales
Parent 8L 1s
Sister 9L 8s
Daughters 17L 8s, 8L 17s
Neutralized 16L 1s
2-Flought 25L 9s, 8L 26s
Equal tunings
Equalized (L:s = 1:1) 2\17 (141.2¢)
Supersoft (L:s = 4:3) 7\59 (142.4¢)
Soft (L:s = 3:2) 5\42 (142.9¢)
Semisoft (L:s = 5:3) 8\67 (143.3¢)
Basic (L:s = 2:1) 3\25 (144.0¢)
Semihard (L:s = 5:2) 7\58 (144.8¢)
Hard (L:s = 3:1) 4\33 (145.5¢)
Superhard (L:s = 4:1) 5\41 (146.3¢)
Collapsed (L:s = 1:0) 1\8 (150.0¢)

8L 9s is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 8 large steps and 9 small steps, repeating every octave. 8L 9s is a child scale of 8L 1s, expanding it by 8 tones. Generators that produce this scale range from 141.2¢ to 150¢, or from 1050¢ to 1058.8¢.

## Modes

Modes of 8L 9s
UDP Rotational order Step pattern
16|0 1 LsLsLsLsLsLsLsLss
15|1 3 LsLsLsLsLsLsLssLs
14|2 5 LsLsLsLsLsLssLsLs
13|3 7 LsLsLsLsLssLsLsLs
12|4 9 LsLsLsLssLsLsLsLs
11|5 11 LsLsLssLsLsLsLsLs
10|6 13 LsLssLsLsLsLsLsLs
9|7 15 LssLsLsLsLsLsLsLs
8|8 17 sLsLsLsLsLsLsLsLs
7|9 2 sLsLsLsLsLsLsLssL
6|10 4 sLsLsLsLsLsLssLsL
5|11 6 sLsLsLsLsLssLsLsL
4|12 8 sLsLsLsLssLsLsLsL
3|13 10 sLsLsLssLsLsLsLsL
2|14 12 sLsLssLsLsLsLsLsL
1|15 14 sLssLsLsLsLsLsLsL
0|16 16 ssLsLsLsLsLsLsLsL

## Scale tree

Scale Tree and Tuning Spectrum of 8L 9s
Bright Dark L:s Hardness
2\17 141.176 1058.824 1:1 1.000 Equalized 8L 9s
11\93 141.935 1058.065 6:5 1.200
9\76 142.105 1057.895 5:4 1.250
16\135 142.222 1057.778 9:7 1.286
7\59 142.373 1057.627 4:3 1.333 Supersoft 8L 9s
19\160 142.500 1057.500 11:8 1.375
12\101 142.574 1057.426 7:5 1.400
17\143 142.657 1057.343 10:7 1.429
5\42 142.857 1057.143 3:2 1.500 Soft 8L 9s
18\151 143.046 1056.954 11:7 1.571
13\109 143.119 1056.881 8:5 1.600
21\176 143.182 1056.818 13:8 1.625
8\67 143.284 1056.716 5:3 1.667 Semisoft 8L 9s
19\159 143.396 1056.604 12:7 1.714
11\92 143.478 1056.522 7:4 1.750
14\117 143.590 1056.410 9:5 1.800
3\25 144.000 1056.000 2:1 2.000 Basic 8L 9s
Scales with tunings softer than this are proper
13\108 144.444 1055.556 9:4 2.250
10\83 144.578 1055.422 7:3 2.333
17\141 144.681 1055.319 12:5 2.400
7\58 144.828 1055.172 5:2 2.500 Semihard 8L 9s
18\149 144.966 1055.034 13:5 2.600
11\91 145.055 1054.945 8:3 2.667
15\124 145.161 1054.839 11:4 2.750
4\33 145.455 1054.545 3:1 3.000 Hard 8L 9s
13\107 145.794 1054.206 10:3 3.333
9\74 145.946 1054.054 7:2 3.500
14\115 146.087 1053.913 11:3 3.667
5\41 146.341 1053.659 4:1 4.000 Superhard 8L 9s
Bohpier
11\90 146.667 1053.333 9:2 4.500
6\49 146.939 1053.061 5:1 5.000
7\57 147.368 1052.632 6:1 6.000 Indium
1\8 150.000 1050.000 1:0 → ∞ Collapsed 8L 9s