190edo: Difference between revisions
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{{Infobox ET}} | {{Infobox ET}} | ||
{{ | {{ED intro}} | ||
== Theory == | == Theory == | ||
190edo is [[consistency|distinctly consistent]] in the [[15-odd-limit]] with a flat tendency, as [[harmonic]]s 3 through 13 are all tuned flat. | 190edo is [[consistency|distinctly consistent]] in the [[15-odd-limit]] with a flat tendency, as [[harmonic]]s 3 through 13 are all tuned flat. | ||
190edo is interesting because of the utility of its approximations; it [[tempering out|tempers out]] [[1029/1024]], [[4375/4374]], [[385/384]], [[441/440]], [[3025/3024]], and [[9801/9800]]. It provides the [[optimal patent val]] for both the 7- and 11-limit versions of [[unidec]], the {{nowrap|72 & 118}} temperament, which tempers out 1029/1024, 4375/4374, and in the 11-limit, 385/384 and 441/440. It also provides the optimal patent val for the rank-3 11-limit temperament [[portent]], which tempers out 385/384 and 441/440, and [[gamelan]], the rank-3 7-limit temperament which tempers out 1029/1024, as well as [[slendric]], the 2.3.7 subgroup temperament featured in the [[#Music]] section. In the 13-limit, 190et tempers out [[625/624]], [[729/728]], [[847/845]], [[1001/1000]] and [[1575/1573]], and provides the optimal patent val for the [[ekadash]] temperament and the rank-3 [[portentous]] temperament. | |||
The 190g [[val]] shows us a smooth path to the even higher limits. This extension tempers out [[289/288]], [[561/560]], [[595/594]] in the 17-limit; [[343/342]], [[476/475]], [[495/494]] in the 19-limit; and [[391/390]], [[529/528]] in the 23-limit. | The 190g [[val]] shows us a smooth path to the even higher limits. This extension tempers out [[289/288]], [[561/560]], [[595/594]] in the 17-limit; [[343/342]], [[476/475]], [[495/494]] in the 19-limit; and [[391/390]], [[529/528]] in the 23-limit. | ||
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== Regular temperament properties == | == 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 | | 2.3 | ||
| {{ | | {{Monzo| -301 190 }} | ||
| {{ | | {{Mapping| 190 301 }} | ||
| +0.285 | | +0.285 | ||
| 0.285 | | 0.285 | ||
Line 27: | Line 36: | ||
| 2.3.5 | | 2.3.5 | ||
| 2109375/2097152, {{monzo| -7 22 -12 }} | | 2109375/2097152, {{monzo| -7 22 -12 }} | ||
| {{ | | {{Mapping| 190 301 441 }} | ||
| +0.341 | | +0.341 | ||
| 0.246 | | 0.246 | ||
Line 34: | Line 43: | ||
| 2.3.5.7 | | 2.3.5.7 | ||
| 1029/1024, 4375/4374, 235298/234375 | | 1029/1024, 4375/4374, 235298/234375 | ||
| {{ | | {{Mapping| 190 301 441 533 }} | ||
| +0.479 | | +0.479 | ||
| 0.321 | | 0.321 | ||
Line 41: | Line 50: | ||
| 2.3.5.7.11 | | 2.3.5.7.11 | ||
| 385/384, 441/440, 4375/4374, 234375/234256 | | 385/384, 441/440, 4375/4374, 234375/234256 | ||
| {{ | | {{Mapping| 190 301 441 533 657 }} | ||
| +0.490 | | +0.490 | ||
| 0.288 | | 0.288 | ||
Line 48: | Line 57: | ||
| 2.3.5.7.11.13 | | 2.3.5.7.11.13 | ||
| 385/384, 441/440, 625/624, 729/728, 847/845 | | 385/384, 441/440, 625/624, 729/728, 847/845 | ||
| {{ | | {{Mapping| 190 301 441 533 657 703 }} | ||
| +0.432 | | +0.432 | ||
| 0.293 | | 0.293 | ||
Line 55: | Line 64: | ||
| 2.3.5.7.11.13.17 | | 2.3.5.7.11.13.17 | ||
| 289/288, 385/384, 441/440, 561/560, 625/624, 847/845 | | 289/288, 385/384, 441/440, 561/560, 625/624, 847/845 | ||
| {{ | | {{Mapping| 190 301 441 533 657 703 776 }} (190g) | ||
| +0.507 | | +0.507 | ||
| 0.327 | | 0.327 | ||
Line 62: | Line 71: | ||
| 2.3.5.7.11.13.17.19 | | 2.3.5.7.11.13.17.19 | ||
| 289/288, 343/342, 385/384, 441/440, 476/475, 495/494, 847/845 | | 289/288, 343/342, 385/384, 441/440, 476/475, 495/494, 847/845 | ||
| {{ | | {{Mapping| 190 301 441 533 657 703 776 807 }} (190g) | ||
| +0.463 | | +0.463 | ||
| 0.327 | | 0.327 | ||
Line 69: | Line 78: | ||
| 2.3.5.7.11.13.17.19.23 | | 2.3.5.7.11.13.17.19.23 | ||
| 289/288, 343/342, 385/384, 391/390, 441/440, 476/475, 495/494, 529/528 | | 289/288, 343/342, 385/384, 391/390, 441/440, 476/475, 495/494, 529/528 | ||
| {{ | | {{Mapping| 190 301 441 533 657 703 776 807 859 }} (190g) | ||
| +0.486 | | +0.486 | ||
| 0.315 | | 0.315 | ||
| 4.98 | | 4.98 | ||
|} | |||
* 190et (190g val) has a lower relative error in the 23-limit than any previous equal temperaments, being the first to beat [[94edo|94]]. However, [[193edo|193]], only slightly larger, beats it. | * 190et (190g val) has a lower relative error in the 23-limit than any previous equal temperaments, being the first to beat [[94edo|94]]. However, [[193edo|193]], only slightly larger, beats it. | ||
* It is also prominent in the 13- and 19-limit, with lower absolute errors than any previous equal temperaments. It beats [[183edo|183]] in either subgroup and is bettered by [[198edo|198]] in the 13-limit, and by 193 in the 19-limit. | * It is also prominent in the 13- and 19-limit, with lower absolute errors than any previous equal temperaments. It beats [[183edo|183]] in either subgroup and is bettered by [[198edo|198]] in the 13-limit, and by 193 in the 19-limit. | ||
=== Rank-2 temperaments === | === 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* | |||
! Temperament | |||
|- | |- | ||
| 1 | | 1 | ||
Line 123: | Line 139: | ||
|- | |- | ||
| 2 | | 2 | ||
| 59\190<br | | 59\190<br>(36\190) | ||
| 372.63<br | | 372.63<br>(227.37) | ||
| 26/21<br | | 26/21<br>(297/260) | ||
| [[Essence]] | | [[Essence]] | ||
|- | |- | ||
| 2 | | 2 | ||
| 71\190<br | | 71\190<br>(24\190) | ||
| 448.42<br | | 448.42<br>(151.58) | ||
| 35/27<br | | 35/27<br>(12/11) | ||
| [[Neusec]] | | [[Neusec]] | ||
|- | |- | ||
| 5 | | 5 | ||
| 79\190<br | | 79\190<br>(3\190) | ||
| 498.95<br | | 498.95<br>(18.95) | ||
| 4/3<br | | 4/3<br>(81/80) | ||
| [[ | | [[Quintile]] | ||
|- | |- | ||
| 10 | | 10 | ||
| 50\190<br | | 50\190<br>(7\190) | ||
| 315.79<br | | 315.79<br>(45.79) | ||
| 6/5<br | | 6/5<br>(40/39) | ||
| [[Deca]] | | [[Deca]] | ||
|- | |- | ||
| 10 | | 10 | ||
| 79\190<br | | 79\190<br>(3\190) | ||
| 498.95<br | | 498.95<br>(18.95) | ||
| 4/3<br | | 4/3<br>(81/80) | ||
| [[ | | [[Decile]] | ||
|- | |- | ||
| 19 | | 19 | ||
| 79\190<br | | 79\190<br>(1\190) | ||
| 498.95<br | | 498.95<br>(6.32) | ||
| 4/3<br | | 4/3<br>(225/224) | ||
| [[Enneadecal]] | | [[Enneadecal]] | ||
|- | |- | ||
| 38 | | 38 | ||
| 79\190<br | | 79\190<br>(1\190) | ||
| 265.26<br | | 265.26<br>(6.32) | ||
| 4/3<br | | 4/3<br>(225/224) | ||
| [[Hemienneadecal]] | | [[Hemienneadecal]] | ||
|- | |- | ||
| 38 | | 38 | ||
| 42\190<br | | 42\190<br>(2\190) | ||
| 265.26<br | | 265.26<br>(12.63) | ||
| 500/429<br | | 500/429<br>(144/143) | ||
| [[Semihemienneadecal]] | | [[Semihemienneadecal]] | ||
|} | |||
<nowiki/>* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct | |||
== Scales == | == Scales == |