128/81: Difference between revisions
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{{Infobox Interval | {{Infobox Interval | ||
| Name = Pythagorean minor sixth | | Name = Pythagorean minor sixth | ||
| Color name = sw6, | | Color name = sw6, sawa 6th | ||
| Sound = jid_128_81_pluck_adu_dr220.mp3 | | Sound = jid_128_81_pluck_adu_dr220.mp3 | ||
}} | }} | ||
'''128/81''' is the '''Pythagorean minor sixth''', | '''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. | ||
== See also == | == See also == | ||
* [[81/64]] | * [[81/64]] – Its [[octave complement]] | ||
* [[Gallery of just intervals]] | * [[Gallery of just intervals]] | ||
* [[Pythagorean tuning]] | * [[Pythagorean tuning]] | ||
[[Category:Sixth]] | [[Category:Sixth]] | ||
[[Category:Minor sixth]] | [[Category:Minor sixth]] | ||
Latest revision as of 07:26, 3 January 2025
| Interval information |
reduced subharmonic
[sound info]
128/81 is the Pythagorean minor sixth, created by stacking four instances of 4/3 and 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.