282edo: Difference between revisions
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== Theory == | == Theory == | ||
282edo is the smallest edo [[consistency|distinctly consistent]] through to the [[23-odd-limit]], and also the smallest consistent to the [[29-odd-limit]]. It shares the same 3rd, 7th, and 13th harmonics with [[94edo]] (282 = 3 × 94), as well as [[11/10]] and [[20/17]] ( | 282edo is the smallest edo [[consistency|distinctly consistent]] through to the [[23-odd-limit]], and also the smallest consistent to the [[29-odd-limit]]. It shares the same 3rd, 7th, and 13th harmonics with [[94edo]] ({{nowrap| 282 {{=}} 3 × 94 }}), as well as [[11/10]] and [[20/17]] ([[support]]ing the [[Stearnsmic clan #Garistearn|garistearn]] temperament). It has a distinct sharp tendency for odd harmonics up to 29. | ||
The equal temperament [[tempering out|tempers out]] [[6144/6125]] (porwell), 118098/117649 (stearnsma), and [[250047/250000]] (landscape comma) in the 7-limit, and [[540/539]] and [[5632/5625]] in the 11-limit, so that it provides the [[optimal patent val]] for the [[jupiter]] temperament; it also tempers out [[4000/3993]] and 234375/234256, providing the optimal patent val for [[septisuperfourth]] temperament. In the 13-limit, it tempers out [[729/728]], [[1575/1573]], [[1716/1715]], [[2080/2079]], and [[10648/10647]]. | The equal temperament [[tempering out|tempers out]] [[6144/6125]] (porwell comma), 118098/117649 (stearnsma), and [[250047/250000]] (landscape comma) in the 7-limit, and [[540/539]] and [[5632/5625]] in the 11-limit, so that it provides the [[optimal patent val]] for the [[jupiter]] temperament; it also tempers out [[4000/3993]] and 234375/234256, providing the optimal patent val for [[septisuperfourth]] temperament. In the 13-limit, it tempers out [[729/728]], [[1575/1573]], [[1716/1715]], [[2080/2079]], and [[10648/10647]]. | ||
It allows [[essentially tempered chord]]s including [[swetismic chords]], [[squbemic chords]], and [[petrmic chords]] in the 13-odd-limit, in addition to [[nicolic chords]] in the 15-odd-limit. | It allows [[essentially tempered chord]]s including [[swetismic chords]], [[squbemic chords]], and [[petrmic chords]] in the 13-odd-limit, in addition to [[nicolic chords]] in the 15-odd-limit. | ||
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=== Subsets and supersets === | === Subsets and supersets === | ||
Since 282 factors into {{ | Since 282 factors into primes as {{nowrap| 2 × 3 × 47 }}, 282edo has subset edos {{EDOs| 2, 3, 47, 94, and 141 }}. | ||
== Regular temperament properties == | == Regular temperament properties == | ||
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! rowspan="2" | [[Comma list]] | ! rowspan="2" | [[Comma list]] | ||
! rowspan="2" | [[Mapping]] | ! rowspan="2" | [[Mapping]] | ||
! rowspan="2" | Optimal<br | ! rowspan="2" | Optimal<br>8ve stretch (¢) | ||
! colspan="2" | Tuning error | ! colspan="2" | Tuning error | ||
|- | |- | ||
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|- | |- | ||
| 2.3.5 | | 2.3.5 | ||
| {{ | | {{Monzo| 32 -7 -9 }}, {{monzo| -7 22 -12 }} | ||
| {{ | | {{Mapping| 282 447 655 }} | ||
| −0.1684 | | −0.1684 | ||
| 0.1671 | | 0.1671 | ||
Line 36: | Line 36: | ||
| 2.3.5.7 | | 2.3.5.7 | ||
| 6144/6125, 118098/117649, 250047/250000 | | 6144/6125, 118098/117649, 250047/250000 | ||
| {{ | | {{Mapping| 282 447 655 792 }} | ||
| −0.2498 | | −0.2498 | ||
| 0.2020 | | 0.2020 | ||
Line 43: | Line 43: | ||
| 2.3.5.7.11 | | 2.3.5.7.11 | ||
| 540/539, 4000/3993, 5632/5625, 137781/137500 | | 540/539, 4000/3993, 5632/5625, 137781/137500 | ||
| {{ | | {{Mapping| 282 447 655 792 976 }} | ||
| −0.3081 | | −0.3081 | ||
| 0.2151 | | 0.2151 | ||
Line 50: | Line 50: | ||
| 2.3.5.7.11.13 | | 2.3.5.7.11.13 | ||
| 540/539, 729/728, 1575/1573, 2200/2197, 3584/3575 | | 540/539, 729/728, 1575/1573, 2200/2197, 3584/3575 | ||
| {{ | | {{Mapping| 282 447 655 792 976 1044 }} | ||
| −0.3480 | | −0.3480 | ||
| 0.2156 | | 0.2156 | ||
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| 2.3.5.7.11.13.17 | | 2.3.5.7.11.13.17 | ||
| 540/539, 729/728, 936/935, 1156/1155, 1575/1573, 2200/2197 | | 540/539, 729/728, 936/935, 1156/1155, 1575/1573, 2200/2197 | ||
| {{ | | {{Mapping| 282 447 655 792 976 1044 1153 }} | ||
| −0.3481 | | −0.3481 | ||
| 0.1996 | | 0.1996 | ||
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| 2.3.5.7.11.13.17.19 | | 2.3.5.7.11.13.17.19 | ||
| 456/455, 540/539, 729/728, 936/935, 969/968, 1156/1155, 1575/1573 | | 456/455, 540/539, 729/728, 936/935, 969/968, 1156/1155, 1575/1573 | ||
| {{ | | {{Mapping| 282 447 655 792 976 1044 1153 1198 }} | ||
| −0.3152 | | −0.3152 | ||
| 0.2061 | | 0.2061 | ||
Line 71: | Line 71: | ||
| 2.3.5.7.11.13.17.19.23 | | 2.3.5.7.11.13.17.19.23 | ||
| 456/455, 540/539, 729/728, 760/759, 936/935, 969/968, 1156/1155, 1288/1287 | | 456/455, 540/539, 729/728, 760/759, 936/935, 969/968, 1156/1155, 1288/1287 | ||
| {{ | | {{Mapping| 282 447 655 792 976 1044 1153 1198 1276 }} | ||
| −0.3173 | | −0.3173 | ||
| 0.1944 | | 0.1944 | ||
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|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator | |+ style="font-size: 105%;" | Table of rank-2 temperaments by generator | ||
|- | |- | ||
! Periods<br | ! Periods<br>per 8ve | ||
! Generator* | ! Generator* | ||
! Cents* | ! Cents* | ||
! Associated<br | ! Associated<br>ratio* | ||
! Temperaments | ! Temperaments | ||
|- | |- | ||
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| 565.96 | | 565.96 | ||
| 4096/2835 | | 4096/2835 | ||
| [[ | | [[Alphatrident]] (7-limit) | ||
|- | |- | ||
| 2 | | 2 | ||
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|- | |- | ||
| 6 | | 6 | ||
| 51\282<br | | 51\282<br>(4\282) | ||
| 217.02<br | | 217.02<br>(17.02) | ||
| 17/15<br | | 17/15<br>(105/104) | ||
| [[Stearnscape]] | | [[Stearnscape]] | ||
|- | |- | ||
| 6 | | 6 | ||
| 80\282<br | | 80\282<br>(14\282) | ||
| 340.43<br | | 340.43<br>(59.57) | ||
| 162/133<br | | 162/133<br>(88/85) | ||
| [[Semiseptichrome]] | | [[Semiseptichrome]] | ||
|- | |- | ||
| 6 | | 6 | ||
| 117\282<br | | 117\282<br>(23\282) | ||
| 497.87<br | | 497.87<br>(97.87) | ||
| 4/3<br | | 4/3<br>(128/121) | ||
| [[Sextile]] | | [[Sextile]] | ||
|} | |} | ||
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[ | <nowiki/>* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[normal lists|minimal form]] in parentheses if distinct | ||
[[Category:Jupiter]] | [[Category:Jupiter]] | ||
[[Category:Septisuperfourth]] | [[Category:Septisuperfourth]] |