Augmented family: Difference between revisions
Review |
→Trisected: + subgroup temperaments |
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Badness (Sintel): 2.67 | Badness (Sintel): 2.67 | ||
== Trisected == | |||
{{Main|Trisected}} | |||
{{See also|Subgroup temperaments #Trisect}} | |||
Trisected tempers out [[1029/1024]] and [[1029/1000]], so it is the intersection of augmented and [[slendric]]. It can be described as the {{nowrap| 15 & 36 }} temperament. | |||
It was named by [[User:Overthink|Overthink]] in 2026, since it splits every Pythagorean interval in three. | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 128/125, 1029/1000 | |||
{{Mapping|legend=1| 3 0 7 10 | 0 3 0 -1 }} | |||
: mapping generators: ~5/4, ~10/7 | |||
[[Optimal tuning]]s: | |||
* [[WE]]: ~5/4 = 399.5199{{c}}, ~10/7 = 633.7146{{c}} | |||
: [[error map]]: {{val| -1.440 -0.811 +10.325 -7.342 }} | |||
* [[CWE]]: ~5/4 = 400.0000{{c}}, ~10/7 = 634.3393{{c}} | |||
: error map: {{val| 0.000 +1.063 +13.686 -3.165 }} | |||
{{Optimal ET sequence|legend=1| 15, 36, 51c }} | |||
[[Badness]] (Sintel): 2.61 | |||
=== 11-limit === | |||
This extension also tempers out [[4000/3993]], equating 3 intervals of [[11/10]] with [[4/3]]. | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 56/55, 128/125, 1029/1000 | |||
Mapping: {{Mapping| 3 0 7 10 12 | 0 3 0 -1 -1 }} | |||
Optimal tunings: | |||
* WE: ~5/4 = 399.3049{{c}}, ~10/7 = 633.7891{{c}} | |||
* CWE: ~5/4 = 400.0000{{c}}, ~10/7 = 634.7695{{c}} | |||
{{Optimal ET sequence|legend=0| 15, 36, 51ce }} | |||
Badness (Sintel): 1.60 | |||
=== 13-limit === | |||
This extension is natural since it equates the [[10/7]], which is 1/3 of [[3/1]] since 1029/1000 is tempered out, with [[13/9]], thus tempering out [[91/90]] and [[2197/2187]]. | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 56/55, 91/90, 128/125, 1029/1000 | |||
Mapping: {{Mapping| 3 0 7 10 12 0 | 0 3 0 -1 -1 7 }} | |||
Optimal tunings: | |||
* WE: ~5/4 = 399.3194{{c}}, ~10/7 = 634.0637{{c}} | |||
* CWE: ~5/4 = 400.0000{{c}}, ~10/7 = 634.9907{{c}} | |||
{{Optimal ET sequence|legend=0| 15, 36, 51ce }} | |||
Badness (Sintel): 1.70 | |||
== Niner == | == Niner == | ||