Canou family: Difference between revisions
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The '''canou family''' of rank-3 temperaments tempers out the [[canousma]], 4802000/4782969 = {{monzo|4 -14 3 4}}, a 7-limit comma measuring about 6.9 cents. | The '''canou family''' of rank-3 temperaments tempers out the [[canousma]], 4802000/4782969 = {{monzo| 4 -14 3 4 }}, a 7-limit comma measuring about 6.9 cents. | ||
== Canou == | == Canou == | ||
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[[Mapping]]: [{{val| 1 0 0 -1 }}, {{val| 0 1 2 2 }}, {{val| 0 0 -4 3 }}] | [[Mapping]]: [{{val| 1 0 0 -1 }}, {{val| 0 1 2 2 }}, {{val| 0 0 -4 3 }}] | ||
Lattice basis: | |||
: 3/2 length = 0.8110, 81/70 length = 0.5135 | |||
: Angle (3/2, 81/70) = 73.88 deg | |||
[[POTE generator]]s: ~3/2 = 702.3728, ~81/70 = 254.6253 | [[POTE generator]]s: ~3/2 = 702.3728, ~81/70 = 254.6253 | ||
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* [[9-odd-limit]]: 3 just, 5 and 7 -c/7 to 3 +c/14, 5 and 7 just | * [[9-odd-limit]]: 3 just, 5 and 7 -c/7 to 3 +c/14, 5 and 7 just | ||
: [[Eigenmonzo]]s: 2, 7/5 | : [[Eigenmonzo]]s: 2, 7/5 | ||
{{Val list|legend=1| 19, 56d, 61d, 75, 80, 94, 99, 212, 292, 311, 410, 1131, 1541b, 1659b }} | {{Val list|legend=1| 19, 56d, 61d, 75, 80, 94, 99, 212, 292, 311, 410, 1131, 1541b, 1659b }} | ||
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[[Complexity spectrum]]: 4/3, 9/7, 9/8, 7/6, 6/5, 10/9, 5/4, 8/7, 7/5 | [[Complexity spectrum]]: 4/3, 9/7, 9/8, 7/6, 6/5, 10/9, 5/4, 8/7, 7/5 | ||
=== | === Overview to extensions === | ||
Canou has a neat extension to the 2.3.5.7.17.19 subgroup with virtually no additional errors. The [[comma basis]] is {1216/1215, 1225/1224, 1445/1444}. Otherwise, 11- and 13-limit extensions are somewhat less ideal. | Canou has a neat extension to the 2.3.5.7.17.19 subgroup with virtually no additional errors. The [[comma basis]] is {1216/1215, 1225/1224, 1445/1444}. Otherwise, 11- and 13-limit extensions are somewhat less ideal. | ||
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Badness: 2.555 × 10<sup>-3</sup> | Badness: 2.555 × 10<sup>-3</sup> | ||
== Canta == | |||
By adding [[896/891]], the pentacircle comma, [[33/32]] is equated with 28/27, so the scale is filled with this 33/32~28/27 mixture. This may be described as 75e & 80 & 99e, and 80edo makes the optimal. | |||
Subgroup: 2.3.5.7 | |||
Comma list: 896/891, 472392/471625 | |||
Mapping: [{{val| 1 0 0 -1 6 }}, {{val| 0 1 2 2 -2 }}, {{val| 0 0 4 -3 -3 }}] | |||
POTE generators: ~3/2 = 703.7418, ~64/55 = 254.6133 | |||
{{Val list|legend=1| 75e, 80, 99e, 179e }} | |||
Badness: 4.523 × 10<sup>-3</sup> | |||
=== Cantawolf === | |||
This extension was named ''canta'' in the earlier materials. It adds [[351/350]], the ratwolfsma, to the comma list. Since 351/350 = (81/70)/(15/13). The 81/70-generator simultaneously represents 15/13, adding a lot of fun to the scale. Again 80edo makes the optimal. | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 351/350, 832/825, 13013/12960 | |||
Mapping: [<1 0 0 -1 6 0|, <0 1 2 2 -2 3|, <0 0 4 -3 -3 5|] | |||
POTE generators: ~3/2 = 703.8423, ~15/13 = 254.3605 | |||
Vals: {{Val list| 75ef, 80, 99e, 104c, 179e, 184c, 203ce }} | |||
Badness: 3.470 × 10<sup>-3</sup> | |||
=== Cantamint === | |||
This extension was named ''gentcanta'' in the earlier materials. It adds [[352/351]], the minthma, as well as [[364/363]], the gentle comma, to the comma list. It is a natural extension of canta, as 896/891 factors neatly into (352/351)×(364/363). Again 80edo makes the optimal. | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 352/351, 364/363, 472392/471625 | |||
Mapping: [{{val| 1 0 0 -1 6 11 }}, {{val| 0 1 2 2 -2 -5 }}, {{val| 0 0 4 -3 -3 -3 }}] | |||
POTE generators: ~3/2 = 703.8695, ~64/55 = 254.6321 | |||
Vals: {{Val list| 75e, 80, 99ef, 179ef }} | |||
Badness: 4.781 × 10<sup>-3</sup> | |||
== Semicanou == | == Semicanou == | ||
Semicanou adds 9801/9800, the kalisma, to the comma list, and may be described as 80 & 94 & 118. It splits the octave into two equal parts, each representing ~99/70. Note that 99/70 = (81/70)(11/9), this extension is more than natural. | Semicanou adds 9801/9800, the kalisma, to the comma list, and may be described as 80 & 94 & 118. It splits the octave into two equal parts, each representing ~99/70. Note that 99/70 = (81/70)(11/9), this extension is more than natural. | ||
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Badness: 3.511 × 10<sup>-3</sup> | Badness: 3.511 × 10<sup>-3</sup> | ||
[[Category:Temperament families]] | [[Category:Temperament families]] | ||
[[Category:Canou family| ]] <!-- main article --> | [[Category:Canou family| ]] <!-- main article --> | ||
[[Category:Rank 3]] | [[Category:Rank 3]] | ||