128/77: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| Icon =
| Name = keenanismic major sixth, octave-reduced 77th subharmonic
| Ratio = 128/77
| Color name = 1ur6, luru 6th
| Monzo = 7 0 0 -1 -1
| Sound = Ji-128-77-csound-foscil-220hz.mp3
| Cents = 879.85615
| Name = keenanismic major sixth, <br> octave-reduced 77th subharmonic
| Color name =
| Sound = Ji-{{#regex:{{PAGENAME}}|/(\S+)\/(\S+)/|\1-\2}}-csound-foscil-220hz.mp3
}}
}}
'''128/77''', the '''keenanismic major sixth''' or '''octave-reduced 77th subharmonic''', is an interval that is is 385/384 (4.5 cents) flatter than [[5/3]]. It is almost exactly 1/7th of a cent flatter than the 880 cent major sixth of [[15edo]].
 
'''128/77''', the '''keenanismic major sixth''' or '''octave-reduced 77th subharmonic''', is an interval that is [[385/384]] (4.5 cents) flatter than [[5/3]]. It is almost exactly 1/7th of a cent flatter than the 880 cent major sixth of [[15edo]].


== See also ==
== See also ==
 
* [[77/64]] – its octave complement
* [[77/64]] -- its octave complement
* [[Gallery of just intervals]]
* [[Gallery of just intervals]]


[[Category:11-limit]]
[[Category:Interval ratio]]
[[Category:Sixth]]
[[Category:Sixth]]
[[Category:Major sixth]]
[[Category:Major sixth]]
[[Category:Listen]]
[[Category:Todo:expand]]
[[Category:Todo:improve synopsis]]

Latest revision as of 02:09, 29 December 2022

Interval information
Ratio 128/77
Factorization 27 × 7-1 × 11-1
Monzo [7 0 0 -1 -1⟩
Size in cents 879.8562¢
Names keenanismic major sixth,
octave-reduced 77th subharmonic
Color name 1ur6, luru 6th
FJS name [math]\displaystyle{ \text{M6}_{7,11} }[/math]
Special properties reduced,
reduced subharmonic
Tenney norm (log2 nd) 13.2668
Weil norm (log2 max(n, d)) 14
Wilson norm (sopfr(nd)) 32

[sound info]
Open this interval in xen-calc

128/77, the keenanismic major sixth or octave-reduced 77th subharmonic, is an interval that is 385/384 (4.5 cents) flatter than 5/3. It is almost exactly 1/7th of a cent flatter than the 880 cent major sixth of 15edo.

See also

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