Aberschismic temperaments: Difference between revisions
Cleanup (update keys; -trimot (see tricot family)) |
+artoneutral (87 & 94); improve descriptions for undecental, leapday, and mystery |
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== Undecental == | == Undecental == | ||
Undecental adds the triwellisma to the comma list and may be described as the 29 & 70 temperament. 5/4 is mapped to the quintuple diminished seventh (5d7) or equivalently the perfect fourth (P4) - 3 Pyth. commas. | Undecental adds the triwellisma to the comma list and may be described as the 29 & 70 temperament. 5/4 is mapped to the quintuple diminished seventh (5d7) or equivalently the perfect fourth (P4) - 3 Pyth. commas. [[99edo|58\99]] is an almost perfect generator, just as the name suggests. Another interesting choice is the argent fifth, 2<sup>(2 - sqrt (2))</sup>. | ||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
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: ''For the 5-limit version of this temperament, see [[High badness temperaments #Leapday]].'' | : ''For the 5-limit version of this temperament, see [[High badness temperaments #Leapday]].'' | ||
Leapday tempers out {{monzo|31 -21 1}} | Leapday tempers out the leapday comma, {{monzo| 31 -21 1 }}, in the 5-limit, mapping 5/4 to the triple augmented unison (3A1) or equivalently the minor third (m3) + 2 Pyth. commas. This temperament can be described as the 29 & 46 temperament, which tempers out the hemifamity and [[686/675]] (senga). The alternative extension [[Porwell temperaments #Polypyth|polypyth]] (46 & 121) tempers out the same 5-limit comma as the leapday, but with the porwell ([[6144/6125]]) rather than the hemifamity tempered out. | ||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
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{{Main| Mystery }} | {{Main| Mystery }} | ||
: ''For the 5-limit version of this temperament, see [[High badness temperaments #Mystery]].'' | : ''For the 5-limit version of this temperament, see [[High badness temperaments #Mystery]].'' | ||
Mystery has a 1\29 period and primes 5, 7, 11 and 13 are all reached by one generator step. [[145edo]] or [[232edo]] are good candidates for tunings. | |||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
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Subgroup: 2.3.5.7.11.13 | Subgroup: 2.3.5.7.11.13 | ||
Comma list: 325/324, 352/351, | Comma list: 325/324, 352/351, 385/384, 1331/1323 | ||
Mapping: [{{val| 2 3 4 6 7 8 }}, {{val| 0 4 15 -9 -2 -14 }}] | Mapping: [{{val| 2 3 4 6 7 8 }}, {{val| 0 4 15 -9 -2 -14 }}] | ||
Optimal tuning (POTE): ~99/70 = 1\2, ~ | Optimal tuning (POTE): ~99/70 = 1\2, ~66/65 = 25.697 | ||
Optimal GPV sequence: {{Val list| 46, 94, 140 }} | Optimal GPV sequence: {{Val list| 46, 94, 140 }} | ||
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Mapping: [{{val| 2 3 4 6 7 8 8 }}, {{val| 0 4 15 -9 -2 -14 4 }}] | Mapping: [{{val| 2 3 4 6 7 8 8 }}, {{val| 0 4 15 -9 -2 -14 4 }}] | ||
Optimal tuning (POTE): ~17/12 = 1\2, ~ | Optimal tuning (POTE): ~17/12 = 1\2, ~66/65 = 25.701 | ||
Optimal GPV sequence: {{Val list| 46, 94, 140 }} | Optimal GPV sequence: {{Val list| 46, 94, 140 }} | ||
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Mapping: [{{val| 2 3 4 6 7 8 8 9 }}, {{val| 0 4 15 -9 -2 -14 4 -12 }}] | Mapping: [{{val| 2 3 4 6 7 8 8 9 }}, {{val| 0 4 15 -9 -2 -14 4 -12 }}] | ||
Optimal tuning (POTE): ~17/12 = 1\2, ~ | Optimal tuning (POTE): ~17/12 = 1\2, ~66/65 = 25.660 | ||
Optimal GPV sequence: {{Val list| 46, 94, 140h, 234eh }} | Optimal GPV sequence: {{Val list| 46, 94, 140h, 234eh }} | ||
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Mapping: [{{val| 2 3 4 6 7 8 8 9 9 }}, {{val| 0 4 15 -9 -2 -14 4 -12 1 }}] | Mapping: [{{val| 2 3 4 6 7 8 8 9 9 }}, {{val| 0 4 15 -9 -2 -14 4 -12 1 }}] | ||
Optimal tuning (POTE): ~17/12 = 1\2, ~ | Optimal tuning (POTE): ~17/12 = 1\2, ~66/65 = 25.661 | ||
Optimal GPV sequence: {{Val list| 46, 94, 140h, 234ehi }} | Optimal GPV sequence: {{Val list| 46, 94, 140h, 234ehi }} | ||
Badness: 0.014033 | Badness: 0.014033 | ||
== Artoneutral == | |||
Artoneutral is generated by an artoneutral third of ~11/9 (or a tendoneutral sixth of ~18/11) and can be described as the 87 & 94 temperament. [[181edo]] is a recommendable tuning. | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 5120/5103, 3828125/3779136 | |||
[[Mapping]]: [{{val| 1 8 18 -20 }}, {{val| 0 -9 -22 32 }}] | |||
: mapping generators: ~2, ~105/64 | |||
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~105/64 = 855.2452 | |||
{{Val list|legend=1| 87, 94, 181 }} | |||
[[Badness]]: 0.157 | |||
=== 11-limit === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 385/384, 2200/2187, 4000/3993 | |||
Mapping: [{{val| 1 8 18 -20 17 }}, {{val| 0 -9 -22 32 -19 }}] | |||
Optimal tuning (CTE): ~2 = 1\1, ~18/11 = 855.2397 | |||
Optimal GPV sequence: {{Val list| 87, 181 }} | |||
Badness: 0.0459 | |||
=== 13-limit === | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 325/324, 352/351, 385/384, 1575/1573 | |||
Mapping: [{{val| 1 8 18 -20 17 -2 }}, {{val| 0 -9 -22 32 -19 8 }}] | |||
Optimal tuning (CTE): ~2 = 1\1, ~18/11 = 855.2369 | |||
Optimal GPV sequence: {{Val list| 87, 181 }} | |||
Badness: 0.0263 | |||
=== 17-limit === | |||
Subgroup: 2.3.5.7.11.13.17 | |||
Comma list: 325/324, 352/351, 375/374, 385/384, 595/594 | |||
Mapping: [{{val| 1 8 18 -20 17 -2 44 }}, {{val| 0 -9 -22 32 -19 8 -56 }}] | |||
Optimal tuning (CTE): ~2 = 1\1, ~18/11 = 855.2495 | |||
Optimal GPV sequence: {{Val list| 87, 94, 181 }} | |||
Badness: 0.0227 | |||
[[Category:Temperament collections]] | [[Category:Temperament collections]] | ||
[[Category:Hemifamity temperaments| ]] <!-- main article --> | [[Category:Hemifamity temperaments| ]] <!-- main article --> | ||
[[Category:Rank 2]] | [[Category:Rank 2]] | ||