6L 2s: Difference between revisions
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Revision as of 00:04, 2 July 2023
↖ 5L 1s | ↑ 6L 1s | 7L 1s ↗ |
← 5L 2s | 6L 2s | 7L 2s → |
↙ 5L 3s | ↓ 6L 3s | 7L 3s ↘ |
┌╥╥╥┬╥╥╥┬┐ │║║║│║║║││ ││││││││││ └┴┴┴┴┴┴┴┴┘
sLLLsLLL
6L 2s, named ekic in TAMNAMS, is a 2/1-equivalent (octave-equivalent) moment of symmetry scale containing 6 large steps and 2 small steps, with a period of 3 large steps and 1 small step that repeats every 600.0 ¢, or twice every octave. Generators that produce this scale range from 150 ¢ to 200 ¢, or from 400 ¢ to 450 ¢. Scales of the true MOS form, where every period is the same, are proper because there is only one small step per period.
There is only one significant (though small) harmonic entropy minimum with this MOS pattern: hedgehog, in which two generators are 6/5 and three are 4/3, same as porcupine.
In spite of being a multi-MOS, 6L 2s is a warped diatonic scale, because it has one extra large step compared to diatonic (5L 2s): for example, the Ionian diatonic mode LLsLLLs can be warped to the ekic mode LLLsLLLs.
In addition to the true MOS, LLLsLLLs, there is also a near-MOS, LLLLsLLs, in which the period is the only interval with more than two flavors. The true MOS is always proper, because there is only one small step per period, but the near-MOS is only proper if the generator is smaller than 2\14 (which includes hedgehog).
Scale tree
Generator | Cents | L | s | L/s | Comments | |||||
---|---|---|---|---|---|---|---|---|---|---|
1\8 | 150.000 | 1 | 1 | 1.000 | ||||||
6\46 | 156.522 | 6 | 5 | 1.200 | Bison | |||||
5\38 | 157.895 | 5 | 4 | 1.250 | ||||||
9\68 | 158.824 | 9 | 7 | 1.286 | ||||||
4\30 | 160.000 | 4 | 3 | 1.333 | ||||||
11\82 | 160.976 | 11 | 8 | 1.375 | ||||||
7\52 | 161.538 | 7 | 5 | 1.400 | ||||||
10\74 | 162.162 | 10 | 7 | 1.428 | ||||||
3\22 | 163.636 | 3 | 2 | 1.500 | L/s = 3/2, hedgehog is around here | |||||
11\80 | 165.000 | 11 | 7 | 1.571 | Echidna | |||||
8\58 | 165.517 | 8 | 5 | 1.600 | ||||||
13\94 | 165.957 | 13 | 8 | 1.625 | Supers, pogo | |||||
5\36 | 166.667 | 5 | 3 | 1.667 | ||||||
12\86 | 167.442 | 12 | 7 | 1.714 | ||||||
7\50 | 168.000 | 7 | 4 | 1.750 | ||||||
9\64 | 168.750 | 9 | 5 | 1.800 | ||||||
2\14 | 171.429 | 2 | 1 | 2.000 | Basic ekic (Generators smaller than this are proper) | |||||
9\62 | 174.194 | 9 | 4 | 2.250 | ||||||
7\48 | 175.000 | 7 | 3 | 2.333 | ||||||
12\82 | 175.610 | 12 | 5 | 2.400 | ||||||
5\34 | 176.471 | 5 | 2 | 2.500 | ||||||
13\88 | 177.273 | 13 | 5 | 2.600 | Golden ekic | |||||
8\54 | 177.778 | 8 | 3 | 2.667 | ||||||
11\74 | 178.378 | 11 | 4 | 2.750 | ||||||
3\20 | 180.000 | 3 | 1 | 3.000 | L/s = 3/1 | |||||
10\66 | 181.818 | 10 | 3 | 3.333 | ||||||
7\46 | 182.609 | 7 | 2 | 3.500 | ||||||
11\72 | 183.333 | 11 | 3 | 3.667 | Unidec | |||||
4\26 | 184.615 | 4 | 1 | 4.000 | ||||||
9\58 | 186.207 | 9 | 2 | 4.500 | Secant | |||||
5\32 | 187.500 | 5 | 1 | 5.000 | ||||||
6\38 | 189.474 | 6 | 1 | 6.000 | ||||||
1\6 | 200.000 | 1 | 0 | → inf |