1789edo: Difference between revisions
→Rank-2 temperaments: eternal revolutionary |
ArrowHead294 (talk | contribs) mNo edit summary |
||
(12 intermediate revisions by 4 users not shown) | |||
Line 1: | Line 1: | ||
{{Infobox ET}} | {{Infobox ET}} | ||
{{ED intro}} | |||
== Theory == | == Theory == | ||
1789edo is in[[consistent]] to the [[5-odd-limit]] and [[harmonic]] [[3/1|3]] is about halfway between its steps. Otherwise, it is excellent in approximating harmonics [[5/1|5]], [[9/1|9]], [[11/1|11]], [[13/1|13]] and [[21/1|21]], making it suitable for a 2.9.5.21.11.13 [[subgroup]] interpretation. | |||
1789edo can be adapted for use with the 2.5.11.13.29.31.47.59.61 | For higher harmonics, 1789edo can be adapted for use with the 2.9.5.21.11.13.29.31.47.59.61 subgroup. Perhaps the most notable fact about 1789edo is that it [[tempering out|tempers out]] the jacobin comma ([[6656/6655]]), and it is also consistent on the subgroup 2.5.11.13 of the comma, which is quite appropriate for edo's number. Although there are temperaments which are better suited for tempering this comma, 1789edo is unique in that its number is the hallmark year of the French Revolution, thus making the tempering of the jacobin comma on topic. | ||
=== Odd harmonics === | === Odd harmonics === | ||
{{Harmonics in equal|1789 | {{Harmonics in equal|1789}} | ||
=== Jacobin temperaments === | === Jacobin temperaments === | ||
{{Main| The Jacobins }} | |||
Since 1789edo tempers out the jacobin comma and it is defined by stacking three 11/8s to reach 13/10, one can use that as a generator. The resulting temperament is 37 & 1789, called onzonic. Name "onzonic" comes from the French word for eleven, ''onze''. | Since 1789edo tempers out the jacobin comma and it is defined by stacking three 11/8s to reach 13/10, one can use that as a generator. The resulting temperament is {{nowrap|37 & 1789}}, called onzonic. Name "onzonic" comes from the French word for eleven, ''onze''. | ||
1789edo supports the 2.5.11.13.19 subgroup temperament called ''estates general'' defined as 1789 & 3125. This is referencing the fact that Estates General were called by Louis XVI on 5th May 1789, written as 05/05, and 3125 is 5 to the 5th power and also provides an optimal patent val for tempering out the jacobin comma, contuing the lore. | 1789edo supports the 2.5.11.13.19 subgroup temperament called ''estates general'' defined as {{nowrap|1789 & 3125}}. This is referencing the fact that Estates General were called by Louis XVI on 5th May 1789, written as 05/05, and 3125 is 5 to the 5th power and also provides an optimal patent val for tempering out the jacobin comma, contuing the lore. | ||
=== Other === | === Other === | ||
1789edo can be used for the finite "French decimal" | 1789edo can be used for the finite "French decimal" temperament—that is, where all the interval targets in just intonation are expressed as terminating decimals. For example, [[5/4]], [[25/16]], [[128/125]], [[32/25]], 625/512, etc. | ||
Since the 5/4 of 1789edo is on the 576th step, a highly divisible number, 1789edo can replicate a lot of [[ | Since the 5/4 of 1789edo is on the 576th step, a highly divisible number, 1789edo can replicate a lot of [[ed5/4]] temperaments—more exactly those which are divisors of 576, and that includes all from [[2ed5/4]] to [[9ed5/4]], skipping [[7ed5/4]]. One such scale which stands for [[4ed5/4]], is a tuning for the [[hemiluna]] temperament in the 1789bd val in the 13-limit. It is also worth noting that 1789bd val is better tuned than the patent val. | ||
1789edo has an essentially perfect [[9/8]], a very common interval. 1789edo supports the 2.9.5.11.13 subgroup temperament called ''commatose'' which uses the Pythagorean comma as a generator, which is excess of six 9/8s over the octave in this case. It is defined as a 460 & 1789 temperament. | 1789edo has an essentially perfect [[9/8]], a very common interval. 1789edo supports the 2.9.5.11.13 subgroup temperament called ''commatose'' which uses the Pythagorean comma as a generator, which is excess of six 9/8s over the octave in this case. It is defined as a {{nowrap|460 & 1789}} temperament. | ||
Since 1789edo has a very precise 31/29, it supports tricesimoprimal | Since 1789edo has a very precise 31/29, it supports tricesimoprimal miracloid—a version of secor with 31/29 as the generator and a flat, meantone-esque fifth of about 692.23 cents. Using the maximal evenness method, we find a {{nowrap|52 & 1789}} temperament. Best subgroup for it is 2.5.7.11.19.29.31, since both 52edo and 1789edo support it well, and the comma basis is 10241/10240, 5858783/5856400, 4093705/4090624, 15109493/15089800, 102942875/102834688. | ||
On the patent val in the 7-limit, 1789edo supports 99 & 373 temperament called maviloid. In addition, it also tempers out [[2401/2400]]. | On the patent val in the 7-limit, 1789edo supports {{nowrap|99 & 373}} temperament called maviloid. In addition, it also tempers out [[2401/2400]]. | ||
=== Subsets and supersets === | |||
1789edo is the 278th [[prime edo]]. [[3578edo]], which doubles it, is consistent in the [[21-odd-limit]]. | |||
== Table of selected intervals == | == Table of selected intervals == | ||
{| class="wikitable mw-collapsible mw-collapsed" | {| class="wikitable mw-collapsible mw-collapsed" | ||
|+ style=white-space:nowrap | Selected intervals in 1789edo | |+ style="font-size: 105%; white-space: nowrap;" | Selected intervals in 1789edo | ||
|- | |||
! Step | ! Step | ||
! Eliora's | ! Eliora's naming system | ||
! JI | ! JI approximation or other interpretations* | ||
|- | |- | ||
| 0 | | 0 | ||
Line 64: | Line 67: | ||
| 65/62 | | 65/62 | ||
|- | |- | ||
|125 | | 125 | ||
|Sextilimeans generator | | Sextilimeans generator | ||
|16807/16000 | | 16807/16000 | ||
|- | |- | ||
| 172 | | 172 | ||
Line 104: | Line 107: | ||
| [[13/10]] | | [[13/10]] | ||
|- | |- | ||
|750 | | 750 | ||
|Sextilimeans fourth | | Sextilimeans fourth | ||
| | | | ||
|- | |- | ||
| 777 | | 777 | ||
| Maviloid generator | | Maviloid generator | ||
|875/648 | | 875/648 | ||
|- | |- | ||
| 822 | | 822 | ||
Line 120: | Line 123: | ||
| (31/29)<sup>6</sup> | | (31/29)<sup>6</sup> | ||
|- | |- | ||
|1039 | | 1039 | ||
|Sextilimeans fifth | | Sextilimeans fifth | ||
| | | | ||
|- | |- | ||
| 1046 | | 1046 | ||
| Minor fifth | | Minor fifth | ||
| [[3/2]] | | [[3/2]]** | ||
|- | |- | ||
| 1047 | | 1047 | ||
| Major fifth | | Major fifth | ||
| [[3/2]] | | [[3/2]]** | ||
|- | |- | ||
| 1213 | | 1213 | ||
Line 156: | Line 159: | ||
| 2/1 | | 2/1 | ||
|} | |} | ||
<nowiki>* | <nowiki />* Based on the 2.5.11.13.29.31 subgroup where applicable | ||
<nowiki />** 1046\1789 as 3/2 is the patent val, 1047\1789 as 3/2 is the 1789b val | |||
== 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 | ! rowspan="2" | [[Comma list]] | ||
! rowspan="2" | [[Mapping]] | ! rowspan="2" | [[Mapping]] | ||
! rowspan="2" | Optimal<br>8ve | ! rowspan="2" | Optimal<br>8ve stretch (¢) | ||
! colspan="2" | Tuning | ! colspan="2" | Tuning error | ||
|- | |- | ||
! [[TE error|Absolute]] (¢) | ! [[TE error|Absolute]] (¢) | ||
Line 173: | Line 177: | ||
| 2.9 | | 2.9 | ||
| {{monzo| -5671 1789 }} | | {{monzo| -5671 1789 }} | ||
| | | {{mapping| 1789 5671 }} | ||
| | | −0.00044 | ||
| 0.00044 | | 0.00044 | ||
| 0.06 | | 0.06 | ||
Line 180: | Line 184: | ||
| 2.9.5 | | 2.9.5 | ||
| {{monzo| -70 36 -19 }}, {{monzo| 129 -7 -46 }} | | {{monzo| -70 36 -19 }}, {{monzo| 129 -7 -46 }} | ||
| | | {{mapping| 1789 5671 4154 }} | ||
| | | −0.00710 | ||
| 0.00942 | | 0.00942 | ||
| 1.40 | | 1.40 | ||
Line 187: | Line 191: | ||
| 2.9.5.7 | | 2.9.5.7 | ||
| 420175/419904, {{monzo| 34 2 -21 3 }}, {{monzo| -55 15 2 1 }} | | 420175/419904, {{monzo| 34 2 -21 3 }}, {{monzo| -55 15 2 1 }} | ||
| | | {{mapping| 1789 5671 4154 5022 }} | ||
| +0.01606 | | +0.01606 | ||
| 0.04093 | | 0.04093 | ||
| 6.10 | | 6.10 | ||
|- style="border-top: double;" | |||
| 2.5.11.13 | |||
| 6656/6655, {{monzo| 43 -18 5 -5 }}, {{monzo| -38 -32 10 21 }} | |||
| {{mapping| 1789 4154 6189 6620}} | |||
| −0.00490 | |||
| 0.01405 | |||
| 2.09 | |||
|- | |- | ||
| 2.5.11.13.29 | |||
| 6656/6655, 371293/371200, {{monzo| -18 -6 -1 3 5 }}, {{monzo| 34 -20 5 0 -1 }} | |||
| {{mapping| 1789 4154 6189 6620 8691 }} | |||
| −0.00591 | |||
| 0.01272 | |||
| 1.90 | |||
|2.5.11.13.29 | |||
|6656/6655, 371293/371200, {{monzo|-18 -6 -1 3 5}}, {{monzo|34 -20 5 0 -1}} | |||
| | |||
| | |||
|0.01272 | |||
|1.90 | |||
|- | |- | ||
| 2.5.11.13.29.31 | | 2.5.11.13.29.31 | ||
| 6656/6655, 387283/387200, 2640704/2640625, 3455881/3455756, 594880000/594823321 | | 6656/6655, 387283/387200, 2640704/2640625, 3455881/3455756, 594880000/594823321 | ||
| | | {{mapping| 1789 4154 6189 6620 8691 8863 }} | ||
| | | −0.00363 | ||
| 0.01268 | | 0.01268 | ||
| 1.89 | | 1.89 | ||
Line 215: | Line 219: | ||
=== Rank-2 temperaments === | === Rank-2 temperaments === | ||
{| class="wikitable center-all left- | {| class="wikitable center-all left-5" | ||
! | |+ style="font-size: 105%;" | Table of rank-2 temperaments by generator | ||
! Cents | |- | ||
! Associated<br> | ! Periods<br>per 8ve | ||
! Generator* | |||
! Cents* | |||
! Associated<br>ratio* | |||
! Temperament | ! Temperament | ||
|- | |- | ||
| 1 | |||
| 35\1789 | | 35\1789 | ||
| 23.48 | | 23.48 | ||
| 531441/524288 | | 531441/524288 | ||
|[[Commatose]] | | [[Commatose]] | ||
|- | |- | ||
|125\1789 | | " | ||
|83.85 | | 125\1789 | ||
|16807/16000 | | 83.85 | ||
|[[Sextilimeans]] | | 16807/16000 | ||
| [[Sextilimeans]] | |||
|- | |- | ||
|144\1789 | | " | ||
|96.59 | | 144\1789 | ||
|200/189 | | 96.59 | ||
|[[Hemiluna]] (1789bd) | | 200/189 | ||
| [[Hemiluna]] (1789bd) | |||
|- | |- | ||
| " | |||
| 172\1789 | | 172\1789 | ||
| 115.37 | | 115.37 | ||
Line 241: | Line 252: | ||
| [[Tricesimoprimal miracloid]] | | [[Tricesimoprimal miracloid]] | ||
|- | |- | ||
|377\1789 | | " | ||
|252.88 | | 377\1789 | ||
|53094899/45875200 | | 252.88 | ||
|[[Double | | 53094899/45875200 | ||
| [[Double bastille]] | |||
|- | |- | ||
| " | |||
| 576\1789 | | 576\1789 | ||
| 386.36 | | 386.36 | ||
Line 251: | Line 264: | ||
| [[French decimal]] | | [[French decimal]] | ||
|- | |- | ||
| " | |||
| 754\1789 | |||
| 505.76 | |||
| {{monzo| 104 0 57 0 -14 5 }} | |||
| [[Pure bastille]] | |||
|- | |||
| " | |||
| 777\1789 | | 777\1789 | ||
| 521.18 | | 521.18 | ||
| 875/648 | | 875/648 | ||
|[[Maviloid]] | | [[Maviloid]] | ||
|- | |- | ||
| " | |||
| 778\1789 | | 778\1789 | ||
| 521.86 | | 521.86 | ||
| 80275/59392 | | 80275/59392 | ||
|[[Estates general]] | | [[Estates general]] | ||
|- | |- | ||
|822\1789 | | " | ||
|551.37 | | 822\1789 | ||
|11/8 | | 551.37 | ||
|[[Onzonic]] | | 11/8 | ||
| [[Onzonic]] | |||
|- | |- | ||
|865\1789 | | " | ||
|580.21 | | 865\1789 | ||
| | | 580.21 | ||
|Eternal | | 6875/4914 | ||
| [[Eternal revolutionary]] (1789bd) | |||
|} | |} | ||
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct | |||
[[ | |||
== Music == | == Music == | ||
; [[Eliora]] | |||
* [https://www.youtube.com/watch?v=1zrnsGODQSg ''Etude la (R)evolution''] (2022) | |||
[[Category:Jacobin]] | [[Category:Jacobin]] | ||
[[Category:Listen]] | |||
{{Todo| review | clarify }} | {{Todo| review | clarify }} | ||