2777edo: Difference between revisions
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{{Infobox ET}} | {{Infobox ET}} | ||
{{ | {{ED intro}} | ||
== Theory == | == Theory == | ||
2777edo is [[consistent]] to the [[7-odd-limit]] and its [[harmonic]] [[3/1|3]] is about halfway its steps. Using the 2.9.5.7.11.13.17.23.29.31 [[subgroup]], it [[tempering out|tempers out]] [[12376/12375]], [[14400/14399]], [[25025/25024]], [[123201/123200]], 20736/20735, [[194481/194480]], 16445/16443, 27625/27621 and 23716/23715. Using the | 2777edo is [[consistent]] to the [[7-odd-limit]] and its [[harmonic]] [[3/1|3]] is about halfway its steps. Using the 2.9.5.7.11.13.17.23.29.31 [[subgroup]], it [[tempering out|tempers out]] [[12376/12375]], [[14400/14399]], [[25025/25024]], [[123201/123200]], 20736/20735, [[194481/194480]], 16445/16443, 27625/27621 and 23716/23715. Using the 2.5.7.11.13.17.23 subgroup, it tempers out [[25025/25024]]. | ||
=== Odd harmonics === | === Odd harmonics === | ||
Line 13: | Line 13: | ||
== 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" |[[Comma list | ! rowspan="2" | [[Subgroup]] | ||
! rowspan="2" |[[Mapping]] | ! rowspan="2" | [[Comma list]] | ||
! rowspan="2" |Optimal<br>8ve | ! rowspan="2" | [[Mapping]] | ||
! colspan="2" |Tuning | ! rowspan="2" | Optimal<br />8ve stretch (¢) | ||
|- | ! colspan="2" | Tuning error | ||
![[TE error|Absolute]] (¢) | |- | ||
![[TE simple badness|Relative]] (%) | ! [[TE error|Absolute]] (¢) | ||
! [[TE simple badness|Relative]] (%) | |||
|- | |- | ||
| 2.9 | | 2.9 | ||
| {{monzo|8803 -2777}} | | {{monzo|8803 -2777}} | ||
| {{mapping|2777 8803}} | | {{mapping|2777 8803}} | ||
| | | −0.0081 | ||
| 0.0081 | | 0.0081 | ||
| 1.87 | | 1.87 | ||
Line 32: | Line 33: | ||
| {{monzo|146 -38 -11}}, {{monzo|-89 -21 67}} | | {{monzo|146 -38 -11}}, {{monzo|-89 -21 67}} | ||
| {{mapping|2777 8803 6448}} | | {{mapping|2777 8803 6448}} | ||
| | | −0.0057 | ||
| 0.0074 | | 0.0074 | ||
| 1.71 | | 1.71 | ||
Line 39: | Line 40: | ||
| {{monzo|2 -10 14 -1}}, {{monzo|-1 -9 -3 13}}, {{monzo|-48 0 11 8}} | | {{monzo|2 -10 14 -1}}, {{monzo|-1 -9 -3 13}}, {{monzo|-48 0 11 8}} | ||
| {{mapping|2777 8803 6448 7796}} | | {{mapping|2777 8803 6448 7796}} | ||
| | | −0.0033 | ||
| 0.0076 | | 0.0076 | ||
| 1.76 | | 1.76 | ||
Line 46: | Line 47: | ||
| 151263/151250, 184549376/184528125, 35156250/35153041, 3487704605/3486784401 | | 151263/151250, 184549376/184528125, 35156250/35153041, 3487704605/3486784401 | ||
| {{mapping|2777 8803 6448 7796 9607}} | | {{mapping|2777 8803 6448 7796 9607}} | ||
| | | −0.0066 | ||
| 0.0095 | | 0.0095 | ||
| 2.20 | | 2.20 | ||
Line 53: | Line 54: | ||
| 123201/123200, 6656/6655, 151263/151250, 8859375/8859136, 43061200/43046721 | | 123201/123200, 6656/6655, 151263/151250, 8859375/8859136, 43061200/43046721 | ||
| {{mapping|2777 8803 6448 7796 9607 10276}} | | {{mapping|2777 8803 6448 7796 9607 10276}} | ||
| | | −0.0032 | ||
| 0.0116 | | 0.0116 | ||
| 2.68 | | 2.68 | ||
Line 60: | Line 61: | ||
| 12376/12375, 14400/14399, 123201/123200, 194481/194480, 4685824/4685625, 81331250/81310473 | | 12376/12375, 14400/14399, 123201/123200, 194481/194480, 4685824/4685625, 81331250/81310473 | ||
| {{mapping|2777 8803 6448 7796 9607 10276 11351}} | | {{mapping|2777 8803 6448 7796 9607 10276 11351}} | ||
| | | −0.0045 | ||
| 0.0112 | | 0.0112 | ||
| 2.59 | | 2.59 | ||
|} | |} | ||
== Music == | |||
; [[Francium]] | |||
* "Joekalille" from ''Naughty Girl Era'' (2024) − [https://open.spotify.com/track/3JkOxSgwBe9dUtxNwI86qa Spotify] | [https://francium223.bandcamp.com/track/joekalille Bandcamp] | [https://www.youtube.com/watch?v=bIwZCmfz7HM YouTube] – joshuavoic in 2777edo |