Nanisma: Difference between revisions
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'''Nanisma''' ( | '''Nanisma''' ({{monzo|legend=1| 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 | 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. | ||
=== | === Nanismic === | ||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: {{monzo| 109 -67 0 -1 }} | |||
{{Mapping|legend=1| 1 0 0 109 | 0 -1 0 67 | 0 0 1 0 }} | |||
: sval mapping generators: ~2, ~3, ~5 | |||
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~3/2 = 701.9578, ~5/4 = 386.3137 | |||
{{Optimal ET sequence|legend=1| 53, 147d, 200, 253, 306c, 359, 412, 506d, 559, 612, 1277, 1889, 3525, 4137, 4190, 4802, 5414, 6079, 6691, 18184, 24875, 92809, 117684, 142559 }} | |||
[[Badness]]: 6.09 × 10<sup>-3</sup> | |||
=== Nanic === | |||
[[Subgroup]]: 2.3.7 | [[Subgroup]]: 2.3.7 | ||
[[Comma list]]: {{monzo| 109 -67 -1 }} | [[Comma list]]: {{monzo| 109 -67 -1 }} | ||
{{Mapping|legend=2| 1 0 109 | 0 -1 67 }} | |||
: sval mapping generators: ~2, ~3 | |||
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~3/2 = 701.9578 | |||
{{Optimal ET sequence|legend=1| 53, 200, 253, 306, 665, 971, 1277, 6691, 7968, 9245, 10522, 11799, 13076, 40505, 53581, 66657, 79733 }} | |||
[[Badness]]: 0.0138 | |||
== See also == | == See also == |