No-twos subgroup temperaments: Difference between revisions

@@ Line 801: / Line 801: @@
 Badness (Sintel): 0.838
+=== Threneb ===
+Named by [[User:CompactStar|CompactStar]] in 2026, Threneb is another weak extension that tempers out the threedie ([[2197/2187]]), equating [[13/9]] to 1 step of [[3edt]], and making that the new period.
+[[Subgroup]]: 3.5.11.13
+[[Comma list]]: 6655/6561, 2197/2187
+{{Mapping|legend=3| 3 0 8 7 | 0 -3 1 0 }}
+: mapping generators: ~13/9, ~243/143
+[[Optimal tuning]]s:
+* [[WE]]: ~3 = 634.520{{c}}, ~243/143 = 928.583{{c}}
+: [[error map]]: {{val| +1.606 -0.565 -3.739 +1.114}}
+* [[CWE]]: ~3 = 634.520{{c}}, ~243/143 = 927.930{{c}}
+: error map: {{val| 0.000 -2.559 -7.368 -2.633 }}
+[[Optimal ET sequence]]: TBA
+[[Badness]] (Sintel): 0.646
 == Electra ==