202edo: Difference between revisions

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The 202 equal temperament divides the octave into 202 equal parts of 5.941 cents each. It tempers out 2401/2400, 19683/19600 and 65625/65536 in the 7-limit and 243/242, 441/440 and 4000/3993 in the 11-limit. It is the [[optimal patent val]] for the 11-limit [[Breedsmic_temperaments|harry]] and [[Breedsmic_temperaments|tertiaseptal]] rank two temperaments, the rank three temperament [[Breed_family|jove]] tempering out 243/242 and 441/440, and the rank four rastma temperament tempering out 243/242.
{{Infobox ET}}
{{ED intro}}


[[category:edo]]
== Theory ==
202et [[tempering out|tempers out]] [[2401/2400]], [[19683/19600]] and [[65625/65536]] in the 7-limit, and [[243/242]], [[441/440]], [[4000/3993]] in the 11-limit. It also notably tempers out the [[quartisma]]. It is the [[optimal patent val]] for the 11-limit rank-2 temperaments [[harry]] and [[tertiaseptal]], the rank-3 temperament [[jove]] tempering out 243/242 and 441/440, and the rank-4 rastmic temperament tempering out 243/242.
 
=== Prime harmonics ===
{{Harmonics in equal|202}}
 
=== Subsets and supersets ===
Since 202 factors into {{factorization|202}}, 202edo contains [[2edo]] and [[101edo]] as its subsets.
 
== 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| -160 101 }}
| {{mapping| 202 320 }}
| +0.3044
| 0.3045
| 5.13
|-
| 2.3.5
| {{monzo| -13 17 -6 }}, {{monzo| 23 6 -14 }}
| {{mapping| 202 320 469 }}
| +0.2280
| 0.2710
| 4.56
|-
| 2.3.5.7
| 2401/2400, 19683/19600, 65625/65536
| {{mapping| 202 320 469 567 }}
| +0.2164
| 0.2356
| 3.97
|-
| 2.3.5.7.11
| 243/242, 441/440, 4000/3993, 65625/65536
| {{mapping| 202 320 469 567 699 }}
| +0.1061
| 0.3049
| 5.13
|}
 
=== 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
| 13\202
| 77.23
| 256/245
| [[Tertiaseptal]]
|-
| 1
| 51\202
| 302.97
| 25/21
| [[Quinmite]]
|-
| 1
| 85\202
| 504.95
| 104976/78125
| [[Countermeantone]]
|-
| 1
| 87\202
| 516.83
| 27/20
| [[Larry]]
|-
| 2
| 12\202
| 71.29
| 25/24
| [[Narayana]]
|-
| 2
| 87\202<br />(14\202)
| 516.83<br />(83.17)
| 27/20<br />(21/20)
| [[Harry]]
|}
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct
 
== Scales ==
* [[Jove1]], [[jove2]], [[jove3]], [[jove4]], [[jove5]], [[jove6]]
* [[Elfjove7]], [[elfjove8d]], [[elfjove10]], [[elfjove11c]], [[elfjove12]]
* [[Oktone]]
 
== Music ==
; [[Mundoworld]]
* [https://www.youtube.com/watch?v=_bNbb2o5K80 ''Home Planet Nostalgia''] – in Oktone scale
 
[[Category:Harry]]
[[Category:Tertiaseptal]]
[[Category:Jove]]
[[Category:Rastmic]]
[[Category:Listen]]