64/43: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| Name = quadracesimoprimal perfect fifth
| Name = prime subharmonic fifth
| Color name = fothu 5th, 43u5
| Color name = fothu 5th, 43u5
}}
}}
'''64/43''', the '''quadracesimoprimal perfect fifth''' is a narrow perfect fifth close to those of [[7edo]] and [[26edo]], and is the first octave-reduced subharmonic that is a diatonic fifth.  
'''64/43''', the '''prime subharmonic fifth''' is a narrow fifth close to those of [[7edo]] and [[26edo]], and, is the first octave-reduced subharmonic that is a diatonic fifth.  This interval is useful for describing [[dual-fifth]] [[regular temperament]]s where the sharp fifth is significantly closer to [[3/2]] than the flat fifth, by mapping the flat fifth to 64/43 and sharp fifth to 3/2.
== See also ==
== See also ==
* [[43/32]] - its [[octave complement]]
* [[43/32]] its [[octave complement]]
* [[Gallery of just intervals]]
 
[[Category:Fifth]]
[[Category:Fifth]]