Luna comma: Difference between revisions
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The '''luna comma''' or '''hemithirds comma''' is an interval of about 1.384 cents. It has the monzo [38 -2 -15⟩ and the ratio '''274877906944 / 274658203125'''. | The '''luna comma''' or '''hemithirds comma''' is an interval of about 1.384 cents. It has the monzo [38 -2 -15⟩ and the ratio '''274877906944 / 274658203125'''. It is the difference between a stack of fifteen [[5/4|classical major third]]s ([[octave reduction|reduced]] four octaves) and a stack of two [[perfect fourth]]s. | ||
It defines the [[luna family]] of temperaments. | It defines the [[luna family]] of temperaments. | ||
{{todo|add etymology}} | |||
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[[Category:Commas with unknown etymology]] | [[Category:Commas with unknown etymology]] | ||
Latest revision as of 20:13, 24 June 2025
| Interval information |
hemithirds comma
Sasa-quintrigu comma
reduced subharmonic
The luna comma or hemithirds comma is an interval of about 1.384 cents. It has the monzo [38 -2 -15⟩ and the ratio 274877906944 / 274658203125. It is the difference between a stack of fifteen classical major thirds (reduced four octaves) and a stack of two perfect fourths.
It defines the luna family of temperaments.