Semaphoresmic family: Difference between revisions
Cmloegcmluin (talk | contribs) "optimal GPV sequence" → "optimal ET sequence", per Talk:Optimal_ET_sequence |
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'''Semiphore family''' is a rank-3 temperament family of 2.3.5.7 that tempers out [[49/48]] and thereby identifies the septimal minor third, 7/6, and the septimal whole tone, 8/7. It also splits the fourth into two of these intervals; hence the name, which sounds like "semi-fourth". Related to this is the 2.3.7-limit 49/48 temperament called "[[Slendro clan #Semaphore|semaphore]]", and the 2.3.5.7 49/48 and 81/80 temperament called "[[Meantone family #Godzilla|godzilla]]". | '''Semiphore family''' is a rank-3 temperament family of 2.3.5.7 that tempers out [[49/48]] and thereby identifies the septimal minor third, [[7/6]], and the septimal whole tone, [[8/7]]. It also splits the fourth into two of these intervals; hence the name, which sounds like "semi-fourth". Related to this is the 2.3.7-limit 49/48 temperament called "[[Slendro clan #Semaphore|semaphore]]", and the 2.3.5.7 49/48 and 81/80 temperament called "[[Meantone family #Godzilla|godzilla]]". | ||
== Semiphore == | == Semiphore == | ||
[[Subgroup]]: 2.3.5.7 | |||
Subgroup: 2.3.5.7 | |||
[[Comma list]]: 49/48 | [[Comma list]]: 49/48 | ||
{{Mapping|legend=1| 1 0 2 2 | 0 2 0 1 | 0 0 1 0 }} | |||
: mapping generators: ~2, ~7/4, ~5 | |||
Lattice basis: | Lattice basis: | ||
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: Angle (7/6, 5/4) = 90 degrees | : Angle (7/6, 5/4) = 90 degrees | ||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~7/6 = 250.3846, ~5/4 = 379.7035 | ||
{{Optimal ET sequence|legend=1| 4, 5, 9, 10, 14c, 15, 19 }} | {{Optimal ET sequence|legend=1| 4, 5, 9, 10, 14c, 15, 19 }} | ||
[[Badness]]: 0.116 × 10<sup>-3</sup> | [[Badness]]: 0.116 × 10<sup>-3</sup> | ||
== Selenium == | == Selenium == | ||
Subgroup: 2.3.5.7.11 | [[Subgroup]]: 2.3.5.7.11 | ||
[[Comma list]]: 49/48, 56/55 | [[Comma list]]: 49/48, 56/55 | ||
{{Mapping|legend=1| 1 0 2 2 5 | 0 2 0 1 1 | 0 0 1 0 -1 }} | |||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~7/6 = 248.2710, ~5/4 = 390.6487 | ||
{{Optimal ET sequence|legend=1| 4, 5, 9, 10, 15, 19, 24, 34 }} | {{Optimal ET sequence|legend=1| 4, 5, 9, 10, 15, 19, 24, 34 }} | ||
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Comma list: 49/48, 56/55, 91/90 | Comma list: 49/48, 56/55, 91/90 | ||
Mapping: | Mapping: {{mapping| 1 0 2 2 5 -1 | 0 2 0 1 1 3 | 0 0 1 0 -1 1 }} | ||
POTE | Optimal tuning (POTE): ~2 = 1\1, ~7/6 = 248.7559, ~5/4 = 389.5957 | ||
{{Optimal ET sequence|legend=1| 5, 9, 10, 15, 19, 24, 34 }} | {{Optimal ET sequence|legend=1| 5, 9, 10, 15, 19, 24, 34 }} | ||
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== Negric == | == Negric == | ||
[[Subgroup]]: 2.3.5.7.11 | |||
Subgroup: 2.3.5.7.11 | |||
[[Comma list]]: 49/48, 225/224 | [[Comma list]]: 49/48, 225/224 | ||
{{Mapping|legend=1| 1 2 2 3 0 | 0 -4 3 -2 0 | 0 0 0 0 1 }} | |||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~15/14 = 125.6080, ~11/8 = 539.2342 | ||
{{Optimal ET sequence|legend=1| 9, 10, 19, 29, 38d, 67cde }} | {{Optimal ET sequence|legend=1| 9, 10, 19, 29, 38d, 67cde }} | ||
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Comma list: 49/48, 65/64, 91/90 | Comma list: 49/48, 65/64, 91/90 | ||
Mapping: | Mapping: {{mapping| 1 2 2 3 0 4 | 0 -4 3 -2 0 -3 | 0 0 0 0 1 0 }} | ||
POTE | Optimal tuning (POTE): ~2 = 1\1, ~14/13 = 125.5675, ~11/8 = 538.4845 | ||
{{Optimal ET sequence|legend=1| 9, 10, 19, 29, 38df, 67cdef }} | {{Optimal ET sequence|legend=1| 9, 10, 19, 29, 38df, 67cdef }} |