Porcupine family: Difference between revisions
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* [[49/48]], the slendro diesis, for [[#Nautilus|nautilus]]. | * [[49/48]], the slendro diesis, for [[#Nautilus|nautilus]]. | ||
All these 7-limit extensions notably share the same 2.3.5.11 subgroup, ''porkypine''. | All these 7-limit extensions notably share the same 2.3.5.11 subgroup, known as ''porkypine''. | ||
Temperaments discussed elsewhere include | Temperaments discussed elsewhere include [[Dicot family #Jamesbond|jamesbond]]. | ||
== Porcupine == | == Porcupine == | ||
Line 208: | Line 208: | ||
Badness: 0.026043 | Badness: 0.026043 | ||
== | == Opossum == | ||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
[[Comma list]]: | [[Comma list]]: 28/27, 126/125 | ||
[[Mapping]]: [{{val| 1 2 3 | [[Mapping]]: [{{val| 1 2 3 4 }}, {{val| 0 -3 -5 -9 }}] | ||
{{Multival|legend=1| 3 5 1 | {{Multival|legend=1| 3 5 9 1 6 7 }} | ||
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~10/9 = | [[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~10/9 = 161.3063 | ||
[[Minimax tuning]]: | [[Minimax tuning]]: | ||
* [[7-odd-limit|7-]] and [[9-odd-limit]] | * [[7-odd-limit|7-]] and [[9-odd-limit]] [[eigenmonzo basis]]: 2.7 | ||
{{Val list|legend=1| | {{Val list|legend=1| 7d, 8d, 15 }} | ||
[[Badness]]: 0. | [[Badness]]: 0.040650 | ||
=== 11-limit === | === 11-limit === | ||
Subgroup: 2.3.5.7.11 | Subgroup: 2.3.5.7.11 | ||
Comma list: | Comma list: 28/27, 55/54, 77/75 | ||
Mapping: [{{val| 1 2 3 4 4 }}, {{val| 0 -3 -5 -9 -4 }}] | |||
Optimal tuning (CTE): ~2 = 1\1, ~11/10 = 161.3646 | |||
Minimax tuning: | |||
* 11-odd-limit eigenmonzo basis: 2.7 | |||
Optimal GPV sequence: {{Val list| 7d, 8d, 15 }} | |||
Badness: 0.022325 | |||
=== 13-limit === | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 28/27, 40/39, 55/54, 66/65 | |||
Mapping: [{{val| 1 2 3 4 4 4 }}, {{val| 0 -3 -5 -9 -4 -2 }}] | |||
Optimal tuning (CTE): ~2 = 1\1, ~11/10 = 161.6312 | |||
Minimax tuning: | |||
* 13- and 15-odd-limit eigenmonzo basis: 2.7 | |||
Optimal GPV sequence: {{ | Optimal GPV sequence: {{Val list| 7d, 8d, 15, 38bceff }} | ||
Badness: 0. | Badness: 0.019389 | ||
== Porky == | == Porky == | ||
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Badness: 0.030233 | Badness: 0.030233 | ||
== Hystrix == | |||
Hystrix provides a less complex avenue to the 7-limit. Unfortunately in temperaments as in life you get what you pay for, and hystrix, for which a generator of 2\15 or 9\68 can be used, is a temperament for the adventurous souls who have probably already tried [[15edo]]. They can try the even sharper fifth of hystrix in [[68edo]] and see how that suits. | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 36/35, 160/147 | |||
[[Mapping]]: [{{val| 1 2 3 3 }}, {{val| 0 -3 -5 -1 }}] | |||
{{Multival|legend=1| 3 5 1 1 -7 -12 }} | |||
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~10/9 = 165.1845 | |||
[[Minimax tuning]]: | |||
* [[7-odd-limit|7-]] and [[9-odd-limit]]: ~10/9 = {{monzo| 3/5 0 -1/5 }} | |||
: [[Eigenmonzo basis]]: 2.5 | |||
{{Val list|legend=1| 7, 8d, 15d }} | |||
[[Badness]]: 0.044944 | |||
=== 11-limit === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 22/21, 36/35, 80/77 | |||
Mapping: [{{val| 1 2 3 3 4 }}, {{val| 0 -3 -5 -1 -4 }}] | |||
Optimal tuning (CTE): ~2 = 1\1, ~11/10 = 164.7684 | |||
Optimal GPV sequence: {{val list| 7, 8d, 15d }} | |||
Badness: 0.026790 | |||
== Oxygen == | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 21/20, 175/162 | |||
[[Mapping]]: [{{val| 1 2 3 3 }}, {{val| 0 -3 -5 -2 }}] | |||
{{Multival|legend=1| 3 5 2 1 -5 -9 }} | |||
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~10/9 = 161.3408 | |||
{{Val list|legend=1| 7d }} | |||
[[Badness]]: 0.059866 | |||
== Hedgehog == | == Hedgehog == |