Nanisma: Difference between revisions

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'''Nanisma''' is a no-five [[7-limit]] [[unnoticeable comma]]. It is the tiny interval between the pythagorean ratio {{monzo|107 -67}} and the harmonic minor-7th of ratio [[7/4]]; {{monzo|109 -67 0 -1}} in [[monzo]] and 0.18903555 [[cent]]s in size.
'''Nanisma''' ([[monzo]]: {{monzo| 109 -67 0 -1 }}) is a no-five [[7-limit]] [[unnoticeable comma]] measuring about 0.189 [[cent]]s in size. It is the tiny interval between the pythagorean ratio {{monzo| 107 -67 }} and the harmonic minor-7th of ratio [[7/4]].


The nanisma is considered as a 3=7 xenharmonic-bridge. It also describes the difference between {{monzo|108 -68}} (a stack of four [[17-comma|17-3-comma]]) and the septimal minor-3rd of ratio [[7/6]], and also the difference between {{monzo|-109 69}} and the wide septimal major-3rd of ratio [[9/7]].
The nanisma is considered as a 3=7 xenharmonic-bridge. It also describes the difference between {{monzo| 108 -68 }} (a stack of four [[17-comma]]s) and the septimal minor third of ratio [[7/6]], and also the difference between {{monzo| -109 69 }} and the wide septimal major third of ratio [[9/7]].


== Temperament ==
== Temperament ==
The nanisma is tempered out in such notable EDOs as {{EDOs| 306, 612, 1277, 1583, 2860, 4137, 4802, 5414, 6079, 6691, 11493, 12105, and 12770 }}, leading to the nanismic temperament, in which sixty-seven fifths make up a septimal whole tone [[8/7]] with octave reduction.
The nanisma is tempered out in such notable edos as {{EDOs| 306, 612, 1277, 1583, 2860, 4137, 4802, 5414, 6079, 6691, 11493, 12105, and 12770 }}, leading to the nanismic temperament, in which sixty-seven fifths make up a septimal whole tone [[8/7]] with octave reduction.


=== No-five nanismic (1277&2860) ===
=== No-five nanismic (1277&2860) ===
Comma list: {{monzo|109 -67 0 -1}}
[[Subgroup]]: 2.3.7


Mapping: [<1 2 -25|, <0 -1 67|]
[[Comma list]]: {{monzo| 109 -67 -1 }}


POTE generator: ~3/2 = 701.9578
[[Sval]] [[mapping]]: [{{val| 1 2 -25 }}, {{val| 0 -1 67 }}]


Vals: {{Val list| 53, 200, 253, 306, 665, 971, 1277, 4137, 5414, 6691, 7968 }}
[[Optimal tuning]] ([[POTE]]): ~3/2 = 701.9578


=== Monzism (53&612) ===
{{Val list|legend=1| 53, 200, 253, 306, 665, 971, 1277, 4137, 5414, 6691, 7968 }}
{{see also|Ragismic microtemperaments}}
 
The ''monzism'' temperament (53&612, named by [[User:Xenllium|Xenllium]]) is a rank-two temperament which tempers out the [[monzisma]], {{monzo|54 -37 2}}, as well as the ragisma, [[4375/4374]]. Tempering out the monzisma slices the interval of fourth [[4/3]] in two.
 
Comma list: 4375/4374, {{monzo|-55 30 2 1}}
 
Mapping: [<1 2 10 -25|, <0 -2 -37 134|]
 
POTE generator: ~310078125/268435456 = 249.0207
 
Vals: {{Val list| 53, 559, 612, 1277, 1889 }}
 
Badness: 0.046569


== See also ==
== See also ==
* [[Unnoticeable comma]]
* [[Unnoticeable comma]]