401edo: Difference between revisions
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{{Infobox ET}} | {{Infobox ET}} | ||
{{EDO intro|401}} | {{EDO intro|401}} | ||
== Theory == | |||
It provides the optimal patent val for diatessic temperament. | 401edo is in[[consistent]] to the [[5-odd-limit]] and [[harmonic]] [[3/1|3]] is about halfway between its steps. Otherwise, it has a reasonable approximation to harmonics [[5/1|5]], [[7/1|7]], [[9/1|9]], [[11/1|11]], and [[13/1|13]], making it suitable for a 2.9.5.7.11.13 [[subgroup]] interpretation. | ||
Using the [[patent val]] nonetheless, the equal temperament [[tempering out|tempers out]] 283115520/282475249 and [[703125/702464]] in the 7-limit; 35156250/35153041, 2097152/2096325, 117649/117612, 226492416/226474325, 9765625/9732096, 42875/42768, 1375/1372, [[5632/5625]], 15488/15435, 202397184/201768035, 102487/102400 and 805255/802816 in the 11-limit. It provides the [[optimal patent val]] for [[diatessic]], the 140 & 261 temperament. | |||
=== Odd harmonics === | |||
{{Harmonics in equal|401}} | {{Harmonics in equal|401}} | ||
==Regular temperament properties== | |||
=== Subsets and supersets === | |||
401edo is the 79th [[prime edo]] | |||
== 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|Comma List]] | ! rowspan="2" | [[Comma list|Comma List]] | ||
! rowspan="2" |[[Mapping]] | ! rowspan="2" | [[Mapping]] | ||
! rowspan="2" |Optimal<br>8ve Stretch (¢) | ! rowspan="2" | Optimal<br>8ve Stretch (¢) | ||
! colspan="2" |Tuning Error | ! colspan="2" | Tuning Error | ||
|- | |- | ||
![[TE error|Absolute]] (¢) | ! [[TE error|Absolute]] (¢) | ||
![[TE simple badness|Relative]] (%) | ! [[TE simple badness|Relative]] (%) | ||
|- | |- | ||
|2.3 | | 2.3 | ||
|{{monzo| 636 -401 }} | | {{monzo| 636 -401 }} | ||
| | | {{mapping| 401 636 }} | ||
| -0.4060 | | -0.4060 | ||
|0.4058 | | 0.4058 | ||
|13.56 | | 13.56 | ||
|- | |- | ||
|2.3.5 | | 2.3.5 | ||
|15625/15552, {{monzo| 107 -66 -1 }} | | 15625/15552, {{monzo| 107 -66 -1 }} | ||
| | | {{mapping| 401 636 931 }} | ||
| -0.2307 | | -0.2307 | ||
|0.4139 | | 0.4139 | ||
|13.83 | | 13.83 | ||
|- | |- | ||
|2.3.5.7 | | 2.3.5.7 | ||
|10976/10935, 15625/15552, 67108864/66706983 | | 10976/10935, 15625/15552, 67108864/66706983 | ||
| | | {{mapping| 401 636 931 1126 }} | ||
| -0.2400 | | -0.2400 | ||
|0.3588 | | 0.3588 | ||
|11.99 | | 11.99 | ||
|- | |- | ||
|2.3.5.7.11 | | 2.3.5.7.11 | ||
|2200/2187, 1375/1372, 5632/5625, 102487/102400 | | 2200/2187, 1375/1372, 5632/5625, 102487/102400 | ||
| | | {{mapping| 401 636 931 1126 1387 }} | ||
| -0.1518 | | -0.1518 | ||
|0.3661 | | 0.3661 | ||
|12.23 | | 12.23 | ||
|- | |- | ||
|2.3.5.7.11.13 | | 2.3.5.7.11.13 | ||
|325/324, 352/351, 625/624, 1375/1372, 3276800/3270267 | | 325/324, 352/351, 625/624, 1375/1372, 3276800/3270267 | ||
| | | {{mapping| 401 636 931 1126 1387 1484 }} | ||
| -0.1431 | | -0.1431 | ||
|0.3348 | | 0.3348 | ||
|11.19 | | 11.19 | ||
|} | |} | ||
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|+Table of rank-2 temperaments by generator | |+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 | ||
|- | |- | ||
|1 | | 1 | ||
|169\401 | | 169\401 | ||
|505.74 | | 505.74 | ||
|75/56 | | 75/56 | ||
|Diatessic | | [[Diatessic]] | ||
|} | |} | ||
<nowiki>*</nowiki> [[Normal lists|octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if it is distinct | |||
== Scales == | |||
* [[Starlingtet11]] | |||
* [[Diatessic27]] | |||
== | == Music == | ||
; [[User:Francium|Francium]] | |||
* [https://www.youtube.com/watch?v=hh-cgGe_zas ''Diana Tessa''] (2023) – diatessic in 403edo tuning | |||
*[https://www.youtube.com/watch?v=hh-cgGe_zas Diana Tessa] | |||