392/375: Difference between revisions
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'''392/375''', the '''prograde comma''', is a [[medium comma|medium]] [[7-limit]] [[comma]] measuring about 76.75 cents. It represents the amount | '''392/375''', the '''prograde comma''', is a [[medium comma|medium]] [[7-limit]] [[comma]] measuring about 76.75 cents. It represents the amount by which two [[7/5]] narrow tritones exceed a [[15/8]] major seventh, and the amount by which three [[15/14]] semitones fall short of a septimal major third [[9/7]]. | ||
== | In terms of other commas, it is the difference between [[21/20]] and [[225/224]]. It factors into ([[49/48]])⋅([[128/125]]) and ([[28/27]])⋅([[126/125]]). | ||
== Temperaments == | |||
This comma is tempered out in [[progress]], [[progression]] and [[mohamaq]]. | |||
== Etymology == | |||
This comma was named by [[User:OffsuitKnave|OffsuitKnave]] in 2022, likely as a variation of ''progress'' or ''progression''. | |||
[[Category:Prograde]] | |||
[[Category:Commas named for their regular temperament properties]] | |||
Latest revision as of 07:29, 10 March 2026
| Interval information |
zozotrigu 3rd
392/375, the prograde comma, is a medium 7-limit comma measuring about 76.75 cents. It represents the amount by which two 7/5 narrow tritones exceed a 15/8 major seventh, and the amount by which three 15/14 semitones fall short of a septimal major third 9/7.
In terms of other commas, it is the difference between 21/20 and 225/224. It factors into (49/48)⋅(128/125) and (28/27)⋅(126/125).
Temperaments
This comma is tempered out in progress, progression and mohamaq.
Etymology
This comma was named by OffsuitKnave in 2022, likely as a variation of progress or progression.