OTC 7L 8s

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Omnitetrachordal MODMOS scale

7L+8s

15 tones (6+3+6)

Porcupine, 2 forms

P = 3.3809207248

Q = 8.6586615703 (4/3 = 3L+2.5s)

L = 80.00 to 171.43 cents (128.12 cents @ P, 151.44 cents @ Q)

s = 0.00 to 80.00 cents (37.89 cents @ P, 17.49 cents @ Q)

9/8 = L+2s (171.43 to 240.00 cents)

4/3 = 3L+3s (480.00 to 514.29 cents)

MOS generator = L+s (160.0 to 171.4 cents)

notable EDOs: 22, 29, 36, 37, 43, 65

LsLsLsLsLsLsLss (MOS, not OTC)

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LsLLssLsLLssLss (OTC MODMOS, form 1)

LsLsLsLsLsLsLss (MOS, not OTC)

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LssLLsLssLLsLss (OTC MODMOS, form 2)

LsLLssLsLLssLss (OTC MODMOS, form 1) - gen chains 9,2,2 / 2 orphans

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LssLLsLssLLsLss (OTC MODMOS, form 2) - gen chains 9,2,2 / 2 orphans

all modes, form 1:

Lss LsLLss LsLLss LssLsL LssLsL Lss
ssL sLLssL sLLssL ssLsLL ssLsLL ssL
sLs LLssLs LLssLs sLsLLs sLsLLs sLs
LsLLss LsLLss Lss
sLLssL sLLssL ssL
LLssLs LLssLs sLs
LssLsL Lss LssLsL
ssLsLL ssL ssLsLL
sLsLLs sLs sLsLLs
LsLLss Lss LsLLss
sLLssL ssL sLLssL
LLssLs sLs LLssLs
Lss LssLsL LssLsL
ssL ssLsLL ssLsLL
sLs sLsLLs sLsLLs

all modes, form 2:

sLs sLLsLs sLLsLs sLssLL sLssLL sLs
Lss LLsLss LLsLss LssLLs LssLLs Lss
ssL LsLssL LsLssL ssLLsL ssLLsL ssL
sLLsLs sLLsLs sLs
LLsLss LLsLss Lss
LsLssL LsLssL ssL
sLssLL sLs sLssLL
LssLLs Lss LssLLs
ssLLsL ssL ssLLsL
sLLsLs sLs sLLsLs
LLsLss Lss LLsLss
LsLssL ssL LsLssL
sLs sLssLL sLssLL
Lss LssLLs LssLLs
ssL ssLLsL ssLLsL

15_07_08_ssLsLL_ssL_ssLsLL.png

See also