OTC 7L 6s

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Omnitetrachordal MODMOS scale

7L+6s

13 tones (5+3+5)

Tetracot MODMOS. Best tuned at high values of L/s.

P = 5.1745609664

Q = 10.4523018119 (4/3 = 3L+1.5s)

L = 92.31 to 171.43 cents (147.07 cents @ P, 158.44 cents @ Q)

s = 0.00 to 92.31 cents (28.42 cents @ P, 15.16 cents @ Q)

9/8 = L+2s (171.43 to 276.92 cents)

4/3 = 3L+2s (461.54 to 514.29 cents)

MOS generator = L+s (171.4 to 184.6 cents)

notable EDOs: 20, 27, 34, 41

sLsLsLsLsLsLL (MOS, not OTC)

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ssLLLssLssLLL (OTC MODMOS) - gc 3,3,3; 4o

symmetric mode: sLLLssLssLLLs

all modes:

ssLLL ssL ssLLL
sLLLs sLs sLLLs
LLLss Lss LLLss
LLssL ssL LLssL
Lss LssLL LssLL
ssL ssLLL ssLLL
sLs sLLLs sLLLs
Lss LLLss LLLss LssLL LssLL Lss
ssL LLssL LLssL ssLLL ssLLL ssL
sLLLs sLLLs sLs
LLLss LLLss Lss
LLssL LLssL ssL
LssLL Lss LssLL

13_07_06_ssLLL_ssL_ssLLL.png

See also