OTC 5L 7s
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Omnitetrachordal MOS scale
12 tones (5+2+5)
MOS of the helmholtz / garibaldi / schismatic and superpyth temperaments, as well as Pythagorean. Very good 3/2 at almost any L/s ratio. Many modes may be pentachordally split in two ways. See also OTC 7L+5s.
P = 1.2600167527 (L=2187/2048, s=256/243)
Q = 7.9100586343 (2L+3.5s)
L = 100.00 to 240.00 cents (113.68 cents @ P, 203.91 cents @ Q)
s = 0.00 to 100.00 cents (90.23 cents @ P, 25.78 cents @ Q)
9/8 = L+s (200.00 to 240.00 cents)
4/3 = 2L+3s (480.00 to 500.00 cents)
generator = 4/3
notable EDOs: 17, 22, 27, 29, 41, 53, etc.
all modes:
Ls LsLss LsLss | ||
sL sLssL sLssL | sLsLs sLsLs sL | |
Ls LssLs LssLs | LsLss LsLss Ls | |
sL ssLsL ssLsL | sLssL sLssL sL | |
Ls sLsLs sLsLs | LssLs LssLs Ls | |
ssLsL ssLsL sL | ||
sLsLs sL sLsLs | sLsLs sLsLs Ls | |
LsLss Ls LsLss | ||
sLssL sL sLssL | ||
LssLs Ls LssLs | ||
ssLsL sL ssLsL | ||
sL sLsLs sLsLs | sLsLs Ls sLsLs |