128/77: Difference between revisions

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| Name = keenanismic major sixth, <br> octave-reduced 77th subharmonic
| Name = keenanismic major sixth, <br> octave-reduced 77th subharmonic
| Color name =
| Color name =
| FJS name = M6<sub>77</sub>
| Sound = Ji-128-77-csound-foscil-220hz.mp3
| Sound = Ji-128-77-csound-foscil-220hz.mp3
}}
}}


'''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]].
'''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]]



Revision as of 14:12, 26 December 2020

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
FJS name [math]\displaystyle{ \text{M6}_{77} }[/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