2L 10s

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Todo: review
Adopt scale tree template, review entries

↖1L 9s ↑2L 9s 3L 9s↗
←1L 10s2L 10s 3L 10s→
↙1L 11s ↓2L 11s 3L 11s↘
┌╥┬┬┬┬┬╥┬┬┬┬┬┐
│║│││││║││││││
││││││││││││││
└┴┴┴┴┴┴┴┴┴┴┴┴┘
Scale structure
Step pattern LsssssLsssss
sssssLsssssL
Equave 2/1 (1200.0¢)
Period 1\2 (600.0¢)
Step size ranges
Large 1\12 to 1\2 (100.0¢ to 600.0¢)
Small 0\2 to 1\12 (0.0¢ to 100.0¢)
Generator size
Bright 5\12 to 1\2 (500.0¢ to 600.0¢)
Dark 0\2 to 1\12 (0.0¢ to 100.0¢)
TAMNAMS information
Descends from 2L 8s (jaric)
Related MOS scales
Parent 2L 8s
Sister 10L 2s
Daughters 12L 2s
2L 12s
Equal tunings
Equalized (L:s = 1:1) 5\12 (500.0¢)
Supersoft (L:s = 4:3) 16\38 (505.3¢)
Soft (L:s = 3:2) 11\26 (507.7¢)
Semisoft (L:s = 5:3) 17\40 (510.0¢)
Basic (L:s = 2:1) 6\14 (514.3¢)
Semihard (L:s = 5:2) 13\30 (520.0¢)
Hard (L:s = 3:1) 7\16 (525.0¢)
Superhard (L:s = 4:1) 8\18 (533.3¢)
Collapsed (L:s = 1:0) 1\2 (600.0¢)

2L 10s is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 2 large steps and 10 small steps, with a period of 1 large step and 5 small steps that repeats every 600.0¢, or twice every octave. 2L 10s is a child scale of 2L 8s, expanding it by 2 tones. Generators that produce this scale range from 500¢ to 600¢, or from 0¢ to 100¢.

2L 10s appears as the chromatic scale of injera and shrutar temperaments, among others. Injera is the harmonic entropy minimum for this pattern, generating 5/4 by moving up four generators from the root. The name for this MOS scale is p-chro jaric.

Modes

Modes of 2L 10s
UDP Rotational order Step pattern
10|0(2) 1 LsssssLsssss
8|2(2) 6 sLsssssLssss
6|4(2) 5 ssLsssssLsss
4|6(2) 4 sssLsssssLss
2|8(2) 3 ssssLsssssLs
0|10(2) 2 sssssLsssssL

Scale tree

Note: the following table uses the dark generator.

Generator ranges:

  • Bright generator: 500 cents (5\12) to 600 cents (1\2)
  • Dark generator: 0 cents (0\2) to 100 cents (1\12)
Small step
(dark generator)
Cents L s L/s Comments
1\12 100.000 1 1 1.000
5\62 96.774 6 5 1.200
4\50 96.000 5 4 1.250
7\88 95.455 9 7 1.286
3\38 94.737 4 3 1.333
8\102 94.118 11 8 1.375
5\64 93.750 7 5 1.400
7\90 93.333 10 7 1.429
2\26 92.308 3 2 1.500 Injera
7\92 91.304 11 7 1.571
5\66 90.909 8 5 1.600
8\106 90.566 13 8 1.625 Unnamed golden tuning (90.6614¢)
3\40 90.000 5 3 1.667
7\94 89.362 12 7 1.714
4\54 88.889 7 4 1.750
5\68 88.235 9 5 1.800
1\14 85.714 2 1 2.000 Basic 2L 10s
(Generators larger than this are proper)
4\58 82.759 9 4 2.250
3\44 81.818 7 3 2.333
5\74 81.081 12 5 2.400
2\30 80.000 5 2 2.500
5\76 78.947 13 5 2.600 Unnamed golden tuning (78.7605¢)
3\46 78.261 8 3 2.667
4\62 77.419 11 4 2.750
1\16 75.000 3 1 3.000
3\50 72.000 10 3 3.333 Vishnu/vishnean
2\34 70.588 7 2 3.500
3\52 69.231 11 3 3.667
1\18 66.667 4 1 4.000
2\38 63.158 9 2 4.500
1\20 60.000 5 1 5.000
1\22 54.545 6 1 6.000 Shrutar
0\2 0 1 0 → inf