Porcupine rank three family: Difference between revisions

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Fredg999 category edits (talk | contribs)
Cmloegcmluin (talk | contribs)
"optimal GPV sequence" → "optimal ET sequence", per Talk:Optimal_ET_sequence
Line 12: Line 12:
[[POTE generator]]s: ~10/9 = 163.9504, ~7/4 = 970.0552
[[POTE generator]]s: ~10/9 = 163.9504, ~7/4 = 970.0552


{{Val list|legend=1| 7d, 8d, 14c, 15, 22, 37, 51, 73c }}
{{Optimal ET sequence|legend=1| 7d, 8d, 14c, 15, 22, 37, 51, 73c }}


[[Badness]]: 0.535 × 10<sup>-3</sup>
[[Badness]]: 0.535 × 10<sup>-3</sup>
Line 25: Line 25:
[[POTE generator]]s: ~11/10 = 164.0777, ~7/4 = 967.8413
[[POTE generator]]s: ~11/10 = 164.0777, ~7/4 = 967.8413


{{Val list|legend=1| 7d, 8d, 14c, 15, 22, 37, 51, 88b }}
{{Optimal ET sequence|legend=1| 7d, 8d, 14c, 15, 22, 37, 51, 88b }}


[[Badness]]: 0.523 × 10<sup>-3</sup>
[[Badness]]: 0.523 × 10<sup>-3</sup>
Line 38: Line 38:
[[POTE generator]]s: ~10/9 = 161.5193, ~7/4 = 971.0457
[[POTE generator]]s: ~10/9 = 161.5193, ~7/4 = 971.0457


{{Val list|legend=1| 7d, 8d, 15, 30dee, 37ee, 52bee }}
{{Optimal ET sequence|legend=1| 7d, 8d, 15, 30dee, 37ee, 52bee }}


[[Badness]]: 1.973 × 10<sup>-3</sup>
[[Badness]]: 1.973 × 10<sup>-3</sup>

Revision as of 18:12, 7 May 2023

These are the rank-3 temperaments tempering out the porcupine comma or maximal diesis, 250/243. If nothing else is tempered out we have a 7-limit planar temperament, with an 11-limit comma we get an 11-limit temperament, and so forth.

Rank-3 porcupine

Subgroup: 2.3.5.7

Comma list: 250/243

Mapping: [1 2 3 0], 0 -3 -5 0], 0 0 0 1]]

Mapping generators: ~2, ~10/9, ~7

POTE generators: ~10/9 = 163.9504, ~7/4 = 970.0552

Optimal ET sequence7d, 8d, 14c, 15, 22, 37, 51, 73c

Badness: 0.535 × 10-3

Sonic

Subgroup: 2.3.5.7.11

Comma list: 55/54, 100/99

Mapping: [1 2 3 0 4], 0 -3 -5 0 -4], 0 0 0 1 0]]

POTE generators: ~11/10 = 164.0777, ~7/4 = 967.8413

Optimal ET sequence7d, 8d, 14c, 15, 22, 37, 51, 88b

Badness: 0.523 × 10-3

Tikal

Subgroup: 2.3.5.7.11

Comma list: 56/55, 250/243

Mapping: [1 2 3 0 0], 0 -3 -5 0 5], 0 0 0 1 1]]

POTE generators: ~10/9 = 161.5193, ~7/4 = 971.0457

Optimal ET sequence7d, 8d, 15, 30dee, 37ee, 52bee

Badness: 1.973 × 10-3