1L 2s
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Scale structure
Step pattern
Lss
ssL
Equave
2/1 (1200.0¢)
Period
2/1 (1200.0¢)
Generator size
Bright
2\3 to 1\1 (800.0¢ to 1200.0¢)
Dark
0\1 to 1\3 (0.0¢ to 400.0¢)
Related MOS scales
Parent
1L 1s
Sister
2L 1s
Daughters
3L 1s, 1L 3s
Neutralized
2L 1s
2-Flought
4L 2s, 1L 5s
Equal tunings
Equalized (L:s = 1:1)
2\3 (800.0¢)
Supersoft (L:s = 4:3)
7\10 (840.0¢)
Soft (L:s = 3:2)
5\7 (857.1¢)
Semisoft (L:s = 5:3)
8\11 (872.7¢)
Basic (L:s = 2:1)
3\4 (900.0¢)
Semihard (L:s = 5:2)
7\9 (933.3¢)
Hard (L:s = 3:1)
4\5 (960.0¢)
Superhard (L:s = 4:1)
5\6 (1000.0¢)
Collapsed (L:s = 1:0)
1\1 (1200.0¢)
| ↑ 1L 1s | 2L 1s ↗ | |
| 1L 2s | 2L 2s → | |
| ↓ 1L 3s | 2L 3s ↘ |
┌╥┬┬┐ │║│││ │││││ └┴┴┴┘
ssL
1L 2s is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 1 large step and 2 small steps, repeating every octave. Generators that produce this scale range from 800¢ to 1200¢, or from 0¢ to 400¢.
This MOS is the parent of tetric (3L 1s) and antetric (1L 3s), the former being the parent of mosh (3L 4s) and smitonic (4L 3s), and the latter being the predecessor of other MOS scales such as semiquartal (5L 4s), gramitonic (4L 5s), and other 1L ns MOS scales.
Names
TAMNAMS uses the name antrial.
Modes
| UDP | Cyclic order |
Step pattern |
Scale degree (mosdegree) | |||
|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | |||
| 2|0 | 1 | Lss | Perf. | Aug. | Perf. | Perf. |
| 1|1 | 3 | sLs | Perf. | Perf. | Perf. | Perf. |
| 0|2 | 2 | ssL | Perf. | Perf. | Dim. | Perf. |
Intervals
| Intervals | Steps subtended |
Range in cents | ||
|---|---|---|---|---|
| Generic | Specific | Abbrev. | ||
| 0-mosstep | Perfect 0-mosstep | P0ms | 0 | 0.0¢ |
| 1-mosstep | Perfect 1-mosstep | P1ms | s | 0.0¢ to 400.0¢ |
| Augmented 1-mosstep | A1ms | L | 400.0¢ to 1200.0¢ | |
| 2-mosstep | Diminished 2-mosstep | d2ms | 2s | 0.0¢ to 800.0¢ |
| Perfect 2-mosstep | P2ms | L + s | 800.0¢ to 1200.0¢ | |
| 3-mosstep | Perfect 3-mosstep | P3ms | L + 2s | 1200.0¢ |
Scale tree
| Generator(edo) | Cents | Step ratio | Comments | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bright | Dark | L:s | Hardness | |||||||
| 2\3 | 800.000 | 400.000 | 1:1 | 1.000 | Equalized 1L 2s | |||||
| 11\16 | 825.000 | 375.000 | 6:5 | 1.200 | ||||||
| 9\13 | 830.769 | 369.231 | 5:4 | 1.250 | ||||||
| 16\23 | 834.783 | 365.217 | 9:7 | 1.286 | ||||||
| 7\10 | 840.000 | 360.000 | 4:3 | 1.333 | Supersoft 1L 2s | |||||
| 19\27 | 844.444 | 355.556 | 11:8 | 1.375 | ||||||
| 12\17 | 847.059 | 352.941 | 7:5 | 1.400 | ||||||
| 17\24 | 850.000 | 350.000 | 10:7 | 1.429 | ||||||
| 5\7 | 857.143 | 342.857 | 3:2 | 1.500 | Soft 1L 2s | |||||
| 18\25 | 864.000 | 336.000 | 11:7 | 1.571 | ||||||
| 13\18 | 866.667 | 333.333 | 8:5 | 1.600 | ||||||
| 21\29 | 868.966 | 331.034 | 13:8 | 1.625 | ||||||
| 8\11 | 872.727 | 327.273 | 5:3 | 1.667 | Semisoft 1L 2s | |||||
| 19\26 | 876.923 | 323.077 | 12:7 | 1.714 | ||||||
| 11\15 | 880.000 | 320.000 | 7:4 | 1.750 | ||||||
| 14\19 | 884.211 | 315.789 | 9:5 | 1.800 | ||||||
| 3\4 | 900.000 | 300.000 | 2:1 | 2.000 | Basic 1L 2s Scales with tunings softer than this are proper | |||||
| 13\17 | 917.647 | 282.353 | 9:4 | 2.250 | ||||||
| 10\13 | 923.077 | 276.923 | 7:3 | 2.333 | ||||||
| 17\22 | 927.273 | 272.727 | 12:5 | 2.400 | ||||||
| 7\9 | 933.333 | 266.667 | 5:2 | 2.500 | Semihard 1L 2s | |||||
| 18\23 | 939.130 | 260.870 | 13:5 | 2.600 | ||||||
| 11\14 | 942.857 | 257.143 | 8:3 | 2.667 | ||||||
| 15\19 | 947.368 | 252.632 | 11:4 | 2.750 | ||||||
| 4\5 | 960.000 | 240.000 | 3:1 | 3.000 | Hard 1L 2s | |||||
| 13\16 | 975.000 | 225.000 | 10:3 | 3.333 | ||||||
| 9\11 | 981.818 | 218.182 | 7:2 | 3.500 | ||||||
| 14\17 | 988.235 | 211.765 | 11:3 | 3.667 | ||||||
| 5\6 | 1000.000 | 200.000 | 4:1 | 4.000 | Superhard 1L 2s | |||||
| 11\13 | 1015.385 | 184.615 | 9:2 | 4.500 | ||||||
| 6\7 | 1028.571 | 171.429 | 5:1 | 5.000 | ||||||
| 7\8 | 1050.000 | 150.000 | 6:1 | 6.000 | ||||||
| 1\1 | 1200.000 | 0.000 | 1:0 | → ∞ | Collapsed 1L 2s | |||||