Fractional-octave temperaments: Difference between revisions
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== 44th-octave temperaments == | == 44th-octave temperaments == | ||
One step of 44edo is very close to the septimal comma, [[64/63]]. The relationship is preserved even up thousands of | One step of 44edo is very close to the septimal comma, [[64/63]]. The relationship is preserved even up thousands of edos. | ||
=== Ruthenium === | === Ruthenium === | ||
Ruthenium is named after the 44th element, and can be expressed as the 1848 & 2684 temperament. | |||
Subgroup: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
Comma list: {{monzo|-8 23 -5 | [[Comma list]]: {{monzo| -8 23 -5 -6 }}, {{monzo| 51 -13 -1 -10 }} | ||
Mapping | [[Mapping]]: [{{val| 44 0 -386 263 }}, {{val| 0 1 7 -2 }}] | ||
Mapping: | Mapping generators: ~64/63, ~3 | ||
Optimal tuning (CTE): ~3/2 = 701. | [[Optimal tuning]] ([[CTE]]): ~3/2 = 701.9420 | ||
{{Val list|legend=1| 176, 660, 836, 1848, 2684, 4532, 19976, 24508, 29040, 33572 }} | |||
[[Badness]]: 0.111 | |||
==== 11-limit ==== | ==== 11-limit ==== | ||
Subgroup: 2.3.5.7.11 | Subgroup: 2.3.5.7.11 | ||
Comma list: 9801/9800, | Comma list: 9801/9800, 1771561/1771470, 67110351/67108864 | ||
Mapping | Mapping: [{{val| 44 0 -386 263 -57 }}, {{val| 0 1 7 -2 3 }}] | ||
Optimal tuning (CTE): ~3/2 = 701.9429 | |||
Optiml GPV sequence: {{val list| 176, 660, 836, 1848, 2684, 4532, 15444, 19976e }} | |||
Badness: 0.0209 | |||
=== 13-limit === | ==== 13-limit ==== | ||
Subgroup: 2.3.5.7.11.13 | Subgroup: 2.3.5.7.11.13 | ||
Comma list: 9801/9800, | Comma list: 9801/9800, 196625/196608, 823680/823543, 1771561/1771470 | ||
Mapping: [{{val|44 | Mapping: [{{val| 44 0 -386 263 -57 1976 }}, {{val| 0 1 7 -2 3 -26 }}] | ||
Optimal tuning (CTE): ~3/2 = 701.939 | Optimal tuning (CTE): ~3/2 = 701.939 | ||
Optiml GPV sequence: {{val list| 836, 1848, 2684, 7216, 9900, 12584 }} | |||
Badness: 0.0396 | |||
== 56th-octave temperaments == | == 56th-octave temperaments == |