Heptacot comma: Difference between revisions
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The '''heptacot comma''' is a [[5-limit]] [[ | The '''heptacot comma''' is a [[small comma|small]] [[5-limit]] [[comma]] measuring about 9.78 [[cent]]s. [[Tempering out]] this comma gives the [[rank-2 temperament|rank-2]] [[heptacot]] temperament, which divides the [[3/2|perfect fifth]] into 7 equal parts. Notable [[edo]]s that [[support]] this temperament include [[12edo|12]] and [[311edo|311]]. | ||
== Etymology == | == Etymology == | ||
This comma was discovered and named in 2024 by [[ | This comma was discovered and named in 2024 by [[Tristan Bay]]. The name comes from the fact that the associated temperament divides the perfect fifth into 7 equal parts, as mentioned above. | ||
[[Category:Commas named for how they divide the fifth]] | [[Category:Commas named for how they divide the fifth]] | ||
Latest revision as of 11:00, 23 August 2025
| Interval information |
reduced subharmonic
The heptacot comma is a small 5-limit comma measuring about 9.78 cents. Tempering out this comma gives the rank-2 heptacot temperament, which divides the perfect fifth into 7 equal parts. Notable edos that support this temperament include 12 and 311.
Etymology
This comma was discovered and named in 2024 by Tristan Bay. The name comes from the fact that the associated temperament divides the perfect fifth into 7 equal parts, as mentioned above.