128/81: Difference between revisions
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'''128/81''' is the '''Pythagorean minor sixth''', created by stacking four instances of [[4/3]] and [[Octave reduction|octave-reducing]]. In contrast to the more typical [[8/5]] | '''128/81''' is the '''Pythagorean minor sixth''', created by stacking four instances of [[4/3]] and [[Octave reduction|octave-reducing]]. In contrast to the more typical [[8/5]]—with which it is conflated in [[meantone]]—this interval has a [[harmonic entropy]] level roughly on par with that of [[12/11]]. Thus, some would argue that it is functionally an imperfect dissonance. | ||
It differs from [[11/7]] by the [[pentacircle comma]]. | |||
== See also == | == See also == | ||
* [[81/64]] | * [[81/64]] – Its [[octave complement]] | ||
* [[Gallery of just intervals]] | * [[Gallery of just intervals]] | ||
* [[Pythagorean tuning]] | * [[Pythagorean tuning]] | ||
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[[Category:Sixth]] | [[Category:Sixth]] | ||
[[Category:Minor sixth]] | [[Category:Minor sixth]] | ||