320edo: Difference between revisions

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m Text replacement - "Octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if distinct" to "Octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if distinct"
 
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{{Infobox ET}}
{{Infobox ET}}
{{EDO intro|320}}
{{ED intro}}


== Theory ==
== Theory ==
320et tempers out 65625/65536 (horwell) and 420175/419904 (wizma) in the 7-limit and [[441/440]], [[8019/8000]] and [[9801/9800]] in the 11-limit, and so [[support]]s the [[varuna]] temperament, the rank-3 temperament tempering out 441/440, 8019/8000 and 9801/9800, for which it provides the [[optimal patent val]]. It also provides the optimal patent val for the rank-4 werckismic temperament tempering out 441/440. It tempers out [[729/728]], [[1001/1000]], [[1575/1573]], [[4225/4224]] and [[6656/6655]] in the 13-limit, leading to further temperaments for which it provides the optimal patent val, such as tempering out 441/440 with 729/728, 1001/1000 or both, or with 8019/8000, leading to a rank-3 temperament.  
320edo is [[consistent]] in the [[19-odd-limit]] and a fairly good tuning for the [[19-limit]]. It has a flat tendency for most [[prime harmonic]]s from 3 to 19, with the sole exception of [[17/1|17]].
 
As an equal temperament, it [[tempering out|tempers out]] 65625/65536 ([[horwell comma]]) and 420175/419904 ([[wizma]]) in the 7-limit and [[441/440]], [[8019/8000]] and [[9801/9800]] in the 11-limit, and so [[support]]s the [[varuna]] temperament, the rank-3 temperament tempering out 441/440, 8019/8000 and 9801/9800, for which it provides the [[optimal patent val]]. It also provides the optimal patent val for the rank-4 werckismic temperament tempering out 441/440. It tempers out [[729/728]], [[1001/1000]], [[1575/1573]], [[4225/4224]] and [[6656/6655]] in the 13-limit, leading to further temperaments for which it provides the optimal patent val, such as tempering out 441/440 with 729/728, 1001/1000 or both, or with 8019/8000, leading to an extension of varuna.  


=== Prime harmonics ===
=== Prime harmonics ===
{{Harmonics in equal|320|intervals=prime|columns=11}}
{{Harmonics in equal|320|intervals=prime|columns=11}}


=== Divisors ===
=== Subsets and supersets ===
Since 320 factors into 2<sup>6</sup> × 5, 320edo has subset edos {{EDOs| 2, 4, 5, 10, 16, 20, 32, 40, 64, 80, and 160 }}.
Since 320 factors into 2<sup>6</sup> × 5, 320edo has subset edos {{EDOs| 2, 4, 5, 10, 16, 20, 32, 40, 64, 80, and 160 }}.


== 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" | [[Subgroup]]
! rowspan="2" | [[Comma list|Comma List]]
! rowspan="2" | [[Comma list]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br>8ve Stretch (¢)
! rowspan="2" | Optimal<br>8ve stretch (¢)
! colspan="2" | Tuning Error
! colspan="2" | Tuning error
|-
|-
! [[TE error|Absolute]] (¢)
! [[TE error|Absolute]] (¢)
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|-
|-
| 2.3
| 2.3
| {{monzo| -507 320 }}
| {{Monzo| -507 320 }}
| [{{val| 320 507 }}]
| {{Mapping| 320 507 }}
| +0.2224
| +0.2224
| 0.2224
| 0.2224
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|-
|-
| 2.3.5
| 2.3.5
| {{monzo| 23 6 -14 }}, {{monzo| -28 25 -5 }}
| {{Monzo| 23 6 -14 }}, {{monzo| -28 25 -5 }}
| [{{val| 320 507 743 }}]
| {{Mapping| 320 507 743 }}
| +0.1574
| +0.1574
| 0.2036
| 0.2036
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| 2.3.5.7
| 2.3.5.7
| 65625/65536, 235298/234375, 321489/320000
| 65625/65536, 235298/234375, 321489/320000
| [{{val| 320 507 743 898 }}]
| {{Mapping| 320 507 743 898 }}
| +0.2361
| +0.2361
| 0.2229
| 0.2229
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| 2.3.5.7.11
| 2.3.5.7.11
| 441/440, 8019/8000, 41503/41472, 65625/65536
| 441/440, 8019/8000, 41503/41472, 65625/65536
| [{{val| 320 507 743 898 1107 }}]
| {{Mapping| 320 507 743 898 1107 }}
| +0.1928
| +0.1928
| 0.2173
| 0.2173
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| 2.3.5.7.11.13
| 2.3.5.7.11.13
| 441/440, 729/728, 1001/1000, 4225/4224, 6656/6655
| 441/440, 729/728, 1001/1000, 4225/4224, 6656/6655
| [{{val| 320 507 743 898 1107 1184 }}]
| {{Mapping| 320 507 743 898 1107 1184 }}
| +0.1845
| +0.1845
| 0.1993
| 0.1993
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| 2.3.5.7.11.13.17
| 2.3.5.7.11.13.17
| 441/440, 729/728, 833/832, 1001/1000, 1089/1088, 4225/4224
| 441/440, 729/728, 833/832, 1001/1000, 1089/1088, 4225/4224
| [{{val| 320 507 743 898 1107 1184 1308 }}]
| {{Mapping| 320 507 743 898 1107 1184 1308 }}
| +0.1565
| +0.1565
| 0.1968
| 0.1968
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| 2.3.5.7.11.13.17.19
| 2.3.5.7.11.13.17.19
| 441/440, 513/512, 729/728, 833/832, 969/968, 1001/1000, 1521/1520
| 441/440, 513/512, 729/728, 833/832, 969/968, 1001/1000, 1521/1520
| [{{val| 320 507 743 898 1107 1184 1308 1359 }}]
| {{Mapping| 320 507 743 898 1107 1184 1308 1359 }}
| +0.1741
| +0.1741
| 0.1899
| 0.1899
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=== Rank-2 temperaments ===
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
{| class="wikitable center-all left-5"
|+Table of rank-2 temperaments by generator
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
|-
! Periods<br>per 8ve
! Periods<br>per 8ve
! Generator<br>(Reduced)
! Generator*
! Cents<br>(Reduced)
! Cents*
! Associated<br>Ratio
! Associated<br>ratio*
! Temperaments
! Temperaments
|-
|-
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| 7\320
| 7\320
| 26.25
| 26.25
| {{monzo| -2 13 -8 }}
| {{Monzo| -2 13 -8 }}
| [[Sfourth]] (5-limit)
| [[Sfourth]] (5-limit)
|-
|-
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| 498.75<br>(18.75)
| 498.75<br>(18.75)
| 4/3<br>(81/80)
| 4/3<br>(81/80)
| [[Pental]]
| [[Quintile]]
|-
|-
| 8
| 8
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| 498.75<br>(18.75)
| 498.75<br>(18.75)
| 4/3<br>(81/80)
| 4/3<br>(81/80)
| [[Decal]]
| [[Decile]]
|-
|-
| 20
| 20
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| [[Octogintic]]
| [[Octogintic]]
|}
|}
<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:Varuna]]
[[Category:Varuna]]
[[Category:Werckismic]]
[[Category:Werckismic]]