No-threes subgroup temperaments: Difference between revisions
documented mabon |
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Vals: 1525, 1789, ... | Vals: 1525, 1789, ... | ||
== Mabon == | |||
Derived from a [http://individual.utoronto.ca/kalendis/leap/index.htm#se calendar leap cycle built for the autumn equinox], hence the name. Defined as the 11 & 62 temperament. | |||
Subgroup: 2.9.7 | |||
Comma basis: 44957696/43046721 | |||
Sval mapping: 1 1 -3, 0 3 8 | |||
Optimal tuning (CTE): ~729/448 = 870.792 | |||
Vals: 7d, 11, 18d, 29, 40, 62, ... | |||
=== 2.9.7.11 subgroup === | |||
Subgroup: 2.9.7.11 | |||
Comma basis: 896/891, 1331/1296 | |||
Sval mapping: 1 1 -3 2, 0 3 8 2 | |||
Optimal tuning (CTE): ~16/11 = 870.966 | |||