961edo: Difference between revisions
Rework theory; comma bases; formatting; clarify the title row of the rank-2 temp table |
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{{Infobox ET}} | {{Infobox ET}} | ||
{{ | {{ED intro}} | ||
== Theory == | == Theory == | ||
The equal temperament [[Tempering out|tempers out]] [[ | 961edo has a reasonable 7-limit interpretation. The equal temperament [[Tempering out|tempers out]] the [[schisma]] in the 5-limit; [[4375/4374]], [[65625/65536]], and [[14348907/14336000]] in the 7-limit, supporting [[pontiac]], the {{nowrap|395 & 566}} temperament. | ||
In the 11-limit, the 961e [[val]] {{val| 961 1523 2231 '''2698''' '''3324''' }} scores the best, which tempers out 102487/102400 and 234375/234256. It prompts us to consider the 961de val {{val| 961 1523 2231 '''2697''' '''3324''' }}, which tempers out [[3025/3024]] and 184877/184320. The [[patent val]] {{val| 961 1523 2231 '''2698''' '''3325''' }} tempers out [[4000/3993]] and 46656/46585. | |||
It works much better as a 2.3.5.7.13.17 [[subgroup temperament]], in which case it tempers out [[10985/10976]], [[1275/1274]], [[2025/2023]] and [[4914/4913]]. | |||
=== Odd harmonics === | === Odd harmonics === | ||
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=== Subsets and supersets === | === Subsets and supersets === | ||
Since 961 factors into | Since 961 factors into {{factorization|961}}, 961edo has [[31edo]] as its subset edo. | ||
== Regular temperament properties == | == Regular temperament properties == | ||
{| class="wikitable center-4 center-5 center-6" | {| class="wikitable center-4 center-5 center-6" | ||
|- | |||
! rowspan="2" | [[Subgroup]] | ! rowspan="2" | [[Subgroup]] | ||
! rowspan="2" | [[Comma list | ! rowspan="2" | [[Comma list]] | ||
! rowspan="2" | [[Mapping]] | ! rowspan="2" | [[Mapping]] | ||
! rowspan="2" | Optimal<br>8ve | ! rowspan="2" | Optimal<br />8ve stretch (¢) | ||
! colspan="2" | Tuning | ! colspan="2" | Tuning error | ||
|- | |- | ||
! [[TE error|Absolute]] (¢) | ! [[TE error|Absolute]] (¢) | ||
! [[TE simple badness|Relative]] (%) | ! [[TE simple badness|Relative]] (%) | ||
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| {{monzo|-1523 961}} | | {{monzo|-1523 961}} | ||
| {{mapping| 961 1523 }} | | {{mapping| 961 1523 }} | ||
| 0.0587 | | +0.0587 | ||
| 0.0587 | | 0.0587 | ||
| 4.70 | | 4.70 | ||
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| 32805/32768, {{monzo| -22 -137 103 }} | | 32805/32768, {{monzo| -22 -137 103 }} | ||
| {{mapping| 961 1523 2231 }} | | {{mapping| 961 1523 2231 }} | ||
| 0.1060 | | +0.1060 | ||
| 0.0823 | | 0.0823 | ||
| 6.59 | | 6.59 | ||
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| 4375/4374, 32805/32768, {{monzo| 15 9 14 -22 }} | | 4375/4374, 32805/32768, {{monzo| 15 9 14 -22 }} | ||
| {{mapping| 961 1523 2231 2698 }} | | {{mapping| 961 1523 2231 2698 }} | ||
| 0.0648 | | +0.0648 | ||
| 0.1008 | | 0.1008 | ||
| 8.01 | | 8.01 | ||
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=== Rank-2 temperaments === | === Rank-2 temperaments === | ||
{| class="wikitable center-all left-5" | {| class="wikitable center-all left-5" | ||
|+Table of rank-2 temperaments by generator | |+ style="font-size: 105%;" | Table of rank-2 temperaments by generator | ||
! Periods<br>per 8ve | |- | ||
! Periods<br />per 8ve | |||
! Generator* | ! Generator* | ||
! Cents* | ! Cents* | ||
! Associated<br> | ! Associated<br />ratio* | ||
! Temperaments | ! Temperaments | ||
|- | |- | ||
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| [[Pontiac]] | | [[Pontiac]] | ||
|} | |} | ||
<nowiki>* | <nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct | ||
== Scales == | == Scales == |