1012edo: Difference between revisions
rank 2 temperaments |
+ semiosiris. Correct math. Style |
||
| (19 intermediate revisions by 4 users not shown) | |||
| Line 1: | Line 1: | ||
{{Infobox ET}} | {{Infobox ET}} | ||
{{ | {{ED intro}} | ||
== Theory == | == Theory == | ||
1012edo is a strong 13-limit system, | 1012edo is a strong 13-limit system, [[consistency|distinctly consistent]] through the [[15-odd-limit]]. It is a [[zeta peak edo]], though not [[zeta integral edo|zeta integral]] nor [[zeta gap edo|zeta gap]]. A basis for the 13-limit [[comma]]s consists of [[2401/2400]], [[4096/4095]], [[6656/6655]], [[9801/9800]] and {{monzo| 2 6 -1 2 0 4 }}. | ||
In the | In the 5-limit, 1012edo is [[enfactoring|enfactored]], with the same tuning as [[506edo]], [[support]]ing [[vishnu]], [[monzismic]], and [[lafa]]. In the 7-limit, it [[tempering out|tempers out]] the [[breedsma]], 2401/2400, and tunes the [[osiris]] temperament. Furthermore, noting its exceptional strength in the 2.3.7 [[subgroup]], it is a [[septiruthenia]]n system, tempering 64/63 comma to 1/44th of the octave, that is 23 steps. It provides the [[optimal patent val]] for [[quarvish]] temperament in the 7-limit and also in the 11-limit. | ||
=== Prime harmonics === | === Prime harmonics === | ||
{{Harmonics in equal|1012}} | {{Harmonics in equal|1012}} | ||
=== | === Subsets and supersets === | ||
1012 has subset edos {{EDOs| 2, 4, 11, 22, 23, 44, 46, 92, 253, 506 }}. | Since 1012 factors into {{nowrap| 2<sup>2</sup> × 11 × 23 }}, 1012edo has subset edos {{EDOs| 2, 4, 11, 22, 23, 44, 46, 92, 253, 506 }}. [[2024edo]], which divides the edostep in two, provides a good correction for the 17th harmonic. | ||
== Regular temperament properties == | == Regular temperament properties == | ||
=== Rank-2 temperaments === | === Rank-2 temperaments === | ||
{| class="wikitable center-all left-5" | {| class="wikitable center-all left-5" | ||
|+ 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 | ||
|- | |- | ||
| 1 | | 1 | ||
| 361\1012 | | 361\1012 | ||
| 428. | | 428.06 | ||
| 2800/2187 | | 2800/2187 | ||
| [[Osiris]] | | [[Osiris]] | ||
|- | |- | ||
| 2 | | 2 | ||
| | | 145\1012 | ||
| 498. | | 171.94 | ||
| 243/220 | |||
| [[Semiosiris]] | |||
|- | |||
| 2 | |||
| 420\1012 | |||
| 498.02 | |||
| 7/5 | | 7/5 | ||
| [[Quarvish]] | | [[Quarvish]] | ||
| Line 38: | Line 44: | ||
| 44 | | 44 | ||
| 420\1012<br>(6\1012) | | 420\1012<br>(6\1012) | ||
| 498. | | 498.02<br>(7.11) | ||
| 4/3<br>(18375/18304) | | 4/3<br>(18375/18304) | ||
| [[Ruthenium]] | | [[Ruthenium]] | ||
|} | |} | ||
<nowiki/>* In [[normal forms #Minimal-generator form|minimal-generator form]] | |||