Porcupine family: Difference between revisions

m Hedgehog: +links
+opossum, +oxygen
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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 [[opossum]], [[Septisemi temperaments #Oxygen|oxygen]], and [[Dicot family #Jamesbond|jamesbond]].
Temperaments discussed elsewhere include [[Dicot family #Jamesbond|jamesbond]].


== Porcupine ==
== Porcupine ==
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Badness: 0.026043
Badness: 0.026043


== Hystrix ==
== Opossum ==
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
[[Subgroup]]: 2.3.5.7


[[Comma list]]: 36/35, 160/147
[[Comma list]]: 28/27, 126/125


[[Mapping]]: [{{val| 1 2 3 3 }}, {{val| 0 -3 -5 -1 }}]
[[Mapping]]: [{{val| 1 2 3 4 }}, {{val| 0 -3 -5 -9 }}]


{{Multival|legend=1| 3 5 1 1 -7 -12 }}
{{Multival|legend=1| 3 5 9 1 6 7 }}


[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~10/9 = 165.1845
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~10/9 = 161.3063


[[Minimax tuning]]:  
[[Minimax tuning]]:  
* [[7-odd-limit|7-]] and [[9-odd-limit]]: ~10/9 = {{monzo| 3/5 0 -1/5 }}
* [[7-odd-limit|7-]] and [[9-odd-limit]] [[eigenmonzo basis]]: 2.7
: [[Eigenmonzo basis]]: 2.5


{{Val list|legend=1| 7, 8d, 15d }}
{{Val list|legend=1| 7d, 8d, 15 }}


[[Badness]]: 0.044944
[[Badness]]: 0.040650


=== 11-limit ===
=== 11-limit ===
Subgroup: 2.3.5.7.11
Subgroup: 2.3.5.7.11


Comma list: 22/21, 36/35, 80/77
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 }}]


Mapping: [{{val| 1 2 3 3 4 }}, {{val| 0 -3 -5 -1 -4 }}]
Optimal tuning (CTE): ~2 = 1\1, ~11/10 = 161.6312


Optimal tuning (CTE): ~2 = 1\1, ~11/10 = 164.7684
Minimax tuning:  
* 13- and 15-odd-limit eigenmonzo basis: 2.7


Optimal GPV sequence: {{val list| 7, 8d, 15d }}
Optimal GPV sequence: {{Val list| 7d, 8d, 15, 38bceff }}


Badness: 0.026790
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 ==