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 that two narrow tritones [[7/5]] exceed a major seventh [[15/8]], and the amount that three [[15/14]] semitones fall short of a septimal major third [[9/7]]. It is tempered out in [[progress]], [[progression]] and [[mohamaq]].
'''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|septimal narrow tritones (7/5)]] exceed a [[15/8|classic major seventh (15/8)]], and the amount by which three [[15/14|aberschismic chromatic semitones (15/14)]] fall short of a [[9/7|septimal supermajor third (9/7)]].  


== See also ==
In terms of other commas, it is the difference between an [[21/20|aberschismic diatonic semitone (21/20)]] and a [[225/224|marvel comma (225/224)]]. It factors into ([[49/48]])⋅([[128/125]]) and ([[28/27]])⋅([[126/125]]).
* [[Gallery of just intervals]]


[[Category:Commas with unknown etymology]]
== 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]]