277edo: Difference between revisions

BudjarnLambeth (talk | contribs)
mNo edit summary
Francium (talk | contribs)
+regular temperament properties
Line 1: Line 1:
{{Infobox ET}}
{{Infobox ET}}
'''277EDO''' is the [[EDO|equal division of the octave]] into 277 parts of 4.3321 [[cent]]s each. It is the 59th [[prime EDO]].
{{EDO intro|277}}
 
277et tempers out 32805/32768 (schisma) and |-11 -37 30> in the 5-limit.  
It tempers out 32805/32768 (schisma) and |-11 -37 30> in the 5-limit.  


Using the patent val, it tempers out 4375/4374, 65625/65536, and 829440/823543 in the 7-limit; 540/539, 6250/6237, 15488/15435, and 35937/35840 in the 11-limit; 625/624, 729/728, 1573/1568, 2080/2079, and 2200/2197 in the 13-limit.  
Using the patent val, it tempers out 4375/4374, 65625/65536, and 829440/823543 in the 7-limit; 540/539, 6250/6237, 15488/15435, and 35937/35840 in the 11-limit; 625/624, 729/728, 1573/1568, 2080/2079, and 2200/2197 in the 13-limit.  
Line 9: Line 8:


The patent val [[support]]s the [[pontiac]], and the 277d val supports the [[guiron]] and the [[widefourth]].
The patent val [[support]]s the [[pontiac]], and the 277d val supports the [[guiron]] and the [[widefourth]].
 
===Prime harmonics===
{{Harmonics in equal|277}}
{{Harmonics in equal|277}}
===Subsets and supersets===
277edo is the 59th [[prime EDO]].
==Regular temperament properties==
{| class="wikitable center-4 center-5 center-6"
! rowspan="2" |[[Subgroup]]
! rowspan="2" |[[Comma list|Comma List]]
! rowspan="2" |[[Mapping]]
! rowspan="2" |Optimal<br>8ve Stretch (¢)
! colspan="2" |Tuning Error
|-
![[TE error|Absolute]] (¢)
![[TE simple badness|Relative]] (%)
|-
|2.3
|{{monzo|-439 277}}
|{{val|277 439}}
| 0.0473
| 0.0473
| 1.09
|-
|2.3.5
|32805/32768, {{monzo|-11 -37 30}}
|{{val|277 439 643}}
| 0.1398
| 0.1364
| 3.15
|}
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
|+Table of rank-2 temperaments by generator
! Periods<br>per 8ve
! Generator<br>(reduced)
! Cents<br>(reduced)
! Associated<br>ratio
! Temperaments
|-
|1
|115\277
|498.19
|4/3
|[[Helmholtz]]
|}
[[Category:Equal divisions of the octave|###]] <!-- 3-digit number -->
[[Category:Equal divisions of the octave|###]] <!-- 3-digit number -->
[[Category:Prime EDO]]
[[Category:Prime EDO]]