323edo: Difference between revisions

Xenllium (talk | contribs)
Created page with "'''323edo''' is the equal division of the octave into 323 parts of 3.7152 cents each. It tempers out 10485760000/10460353203 and 274877906944/274..."
Tags: Mobile edit Mobile web edit
 
 
(28 intermediate revisions by 6 users not shown)
Line 1: Line 1:
'''323edo''' is the [[EDO|equal division of the octave]] into 323 parts of 3.7152 [[cent]]s each. It [[tempering_out|tempers out]] 10485760000/10460353203 and 274877906944/274658203125 in the [[5-limit]]; 4375/4374, 589824/588245 and 703125/702464 in the [[7-limit]], supporting 7-limit [[Vulture family|vulture]], [[Luna family|lunatic]], [[Ragismic microtemperaments|enneadecal]], and [[Ragismic microtemperaments|gamera]]. 11-limit commas 1375/1372, 5632/5625, 14641/14580, and 19712/19683 are tempered out in the patent val; 540/539, 6250/6237, 12005/11979, and 16384/16335 are tempered out in the 323e val.
{{Infobox ET}}
{{ED intro}}


[[Category:Edo]]
== Theory ==
[[Category:Theory]]
323edo is a strong [[5-limit]] system and an excellent tuning when considered in the no-11 [[subgroup]], with errors of 25% or less all the way into the [[31-limit]].
 
As an equal temperament, it [[tempering out|tempers out]] the [[vulture comma]], {{monzo| 24 -21 4 }} and the [[luna comma]], {{monzo| 38 -2 -15 }}, in the 5-limit; [[4375/4374]], [[589824/588245]], and [[703125/702464]] in the [[7-limit]], [[support]]ing 7-limit [[vulture]], [[lunatic]], [[enneadecal]], and [[gamera]].
 
In the 11-limit, the 323e val and the [[patent val]] are comparable in errors. [[1375/1372]], [[5632/5625]], [[14641/14580]], and [[19712/19683]] are tempered out in the patent val; [[540/539]], [[6250/6237]], [[12005/11979]], and [[16384/16335]] are tempered out in the 323e val. It provides the [[optimal patent val]] for the rank-5 temperament tempering out [[1573/1568]], the lambeth comma, as well as 13-limit [[stockhausenic]], and [[deuteromere]], the [[2.3.5.11 subgroup|2.3.5.11-subgroup]] temperament tempering out 14641/14580.
 
=== Prime harmonics ===
{{Harmonics in equal|323|columns=11}}
{{Harmonics in equal|323|columns=11|start=12|collapsed=true|title=Approximation of prime harmonics in 323edo (continued)}}
 
=== Subsets and supersets ===
Since 323 factors into primes as {{nowrap| 17 × 19 }}, 323edo shares the excellent approximations of [[25/24]] in [[17edo]] and of [[6/5]] and [[28/27]] in [[19edo]].
 
== Regular temperament properties ==
{| class="wikitable center-4 center-5 center-6"
|-
! rowspan="2" | [[Subgroup]]
! rowspan="2" | [[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| 512 -323 }}
| {{Mapping| 323 512 }}
| −0.0669
| 0.0669
| 1.80
|-
| 2.3.5
| {{Monzo| 24 -21 4 }}, {{monzo| 38 -2 -15 }}
| {{Mapping| 323 512 750 }}
| −0.0538
| 0.0577
| 1.55
|-
| 2.3.5.7
| 4375/4374, 589824/588245, 703125/702464
| {{Mapping| 323 512 750 907 }}
| −0.1146
| 0.1165
| 3.14
|-
| 2.3.5.7.13
| 676/675, 4096/4095, 4375/4374, 16848/16807
| {{Mapping| 323 512 750 907 1195 }}
| −0.0431
| 0.1770
| 4.76
|-
| 2.3.5.7.13.17
| 442/441, 676/675, 2500/2499, 4096/4095, 4375/4374
| {{Mapping| 323 512 750 907 1195 1320 }}
| +0.0020
| 0.1905
| 5.13
|- style="border-top: double;"
| 2.3.5.7.11
| 1375/1372, 4375/4374, 5632/5625, 14641/14580
| {{Mapping| 323 512 750 907 1117 }} (323)
| −0.0066
| 0.2399
| 6.46
|-
| 2.3.5.7.11.13
| 676/675, 1001/1000, 1375/1372, 4096/4095, 4375/4374
| {{Mapping| 323 512 750 907 1117 1195 }} (323)
| +0.0350
| 0.2380
| 6.40
|- style="border-top: double;"
| 2.3.5.7.11
| 540/539, 4375/4374, 12005/11979, 16384/16335
| {{Mapping| 323 512 750 907 1118 }} (323e)
| −0.2213
| 0.2375
| 6.39
|-
| 2.3.5.7.11.13
| 364/363, 540/539, 676/675, 4096/4095, 4375/4374
| {{Mapping| 323 512 750 907 1118 1195 }} (323e)
| −0.1440
| 0.2773
| 7.47
|}
* 323et has a lower absolute error in the 5-limit than any previous equal temperaments, past [[289edo|289]] and followed by [[388edo|388]].
 
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
|-
! Periods<br>per 8ve
! Generator*
! Cents*
! Associated<br>ratio*
! Temperaments
|-
| 1
| 26\323
| 96.59
| 200/189
| [[Hemiluna]] (323)
|-
| 1
| 27\323
| 100.31
| 675/637
| [[Heptacot]] (323)
|-
| 1
| 30\323
| 111.46
| 16/15
| [[Stockhausenic]] (323)
|-
| 1
| 31\323
| 115.17
| 77/72
| [[Semigamera]] (323)
|-
| 1
| 52\323
| 193.19
| 352/315
| [[Luna]] / [[lunatic]] (323e)
|-
| 1
| 62\323
| 230.34
| 8/7
| [[Gamera]]
|-
| 1
| 128\323
| 475.54
| 25/19
| [[Vulture]]
|-
| 17
| 134\323<br>(9\323)
| 248.92<br>(33.44)
| {{monzo| -23 5 9 -2 }}<br>(100352/98415)
| [[Chlorine]]
|-
| 19
| 134\323<br>(2\323)
| 497.83<br>(7.43)
| 4/3<br>(225/224)
| [[Enneadecal]]
|}
<nowiki/>* [[Normal forms #Equave-reduced-generator form|Octave-reduced form]], reduced to the first half-octave, and [[normal forms #Minimal-generator form|minimal form]] in parentheses if distinct
 
[[Category:Deuteromere]]
[[Category:Lambeth]]
[[Category:Stockhausenic]]