The Quartercache: Difference between revisions
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'''The Quartercache''' is a collection of temperaments of different ranks, including subgroup temperaments, that all temper out the [[quartisma]] | {{Technical data page}} | ||
'''The Quartercache''' is a collection of temperaments of different ranks, including [[subgroup temperaments]], that all temper out the [[quartisma]] – the unnoticeable comma with the [[ratio]] 117440512/117406179, and a [[monzo]] of {{monzo| 24 -6 0 1 -5 }}. Among the members of this family are quartic, altierran, meanquarter, coin, escapismic, dietismic, kleirtismic, doublefour and quarterframe. | |||
== Quartismic == | == Quartismic == | ||
See [[Catalog of rank-4 temperaments #Quartismic (117440512/117406179)]]. | |||
== Quartic == | |||
There are some temperaments that temper out the quartisma despite having limited accuracy in their approximations of five-limit intervals. This particular temperament is the parent temperament of all such no-fives children, and is referred to as ''Saquinlu-azo'' in color notation. | |||
Subgroup: 2.3 | [[Subgroup]]: 2.3.7.11 | ||
[[Comma list]]: 117440512/117406179 | [[Comma list]]: 117440512/117406179 | ||
{{Mapping|legend=1| 1 0 1 5 | 0 1 1 -1 | 0 0 5 1 }} | |||
: mapping generators: ~2, ~3, ~33/32 | |||
{{ | [[Optimal tuning]]s: | ||
* [[WE]]: ~2 = 1199.9875{{c}}, ~3/2 = 701.9753{{c}}, ~33/32 = 53.3743{{c}} | |||
: [[error map]]: {{val| -0.012 +0.008 -0.004 +0.031 }} | |||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 701.9802{{c}}, ~33/32 = 53.3730{{c}} | |||
: error map: {{val| 0.000 +0.025 +0.019 +0.075 }} | |||
{{Optimal ET sequence|legend=1| 21, 22, 24, 43, 46, 89, 135, 359, 494, 629, 742, 877, 1012, 1506, 2248, 2383, 2518, 7419, 8431e, 10949e, 13467e }} | |||
[[Badness]] (Sintel): 0.416 | |||
[[ | The following rank-2 [[mos scale]]s of quartismic have been found: | ||
* [https://sevish.com/scaleworkshop/?name=Rank%202%20scale%20(106.71461627796054%2C%201200.0)%2C%205%7C5&data=106.714616%0A213.429233%0A320.143849%0A426.858465%0A533.573081%0A666.426919%0A773.141535%0A879.856151%0A986.570767%0A1093.285384%0A1200.000000&freq=440&midi=69&vert=9&horiz=1&colors=&waveform=triangle&env=organ Rank 2 scale (106.71461627796054, 1200.0), 5|5] | |||
* The following scale tree has been found: [http://www.microtonalsoftware.com/scale-tree.html?left=12&right=11&rr=1200&ioi=106.71461627796054 1200-106.71461627796054-12-11 Scale Tree] | |||
== | == Direct quartismic == | ||
Instead of 11-limit, direct quartismic is defined directly in the 2.7/3.33 subgroup, as the quartisma itself was discovered via a representation where the generator is 33/32 and five of them stack to 7/6. [[45edo]] is an excellent tuning. It was named by [[Eliora]] in 2023. | |||
[[Subgroup]]: 2.7/3.33 | |||
Subgroup: 2.3. | |||
[[Comma list]]: 117440512/117406179 | [[Comma list]]: 117440512/117406179 | ||
{{Mapping|legend=2| 1 1 5 | 0 5 1 }} | |||
: mapping generators: ~2, ~33/32 | |||
[[ | [[Optimal tuning]]s: | ||
* [[Tp tuning|Subgroup]] [[WE]]: ~2 = 1199.9875{{c}}, ~33/32 = 53.3743{{c}} | |||
: [[error map]]: {{val| -0.012 -0.012 +0.039 }} | |||
* [[Tp tuning|Subgroup]] [[CWE]]: ~2 = 1200.0000{{c}}, ~33/32 = 53.3730{{c}} | |||
: error map: {{val| 0.000 -0.006 +0.100 }} | |||
{{ | {{Optimal ET sequence|legend=1| 21, 22, 45, 337, 382, 427, 472, 517, 562, 607, 652, 1911, 2563, 3215, 5778, 8993* }} | ||
<nowiki/>* wart for 33 | |||
* | |||
== Altierran == | == Altierran == | ||
In altierran, both the schisma and the quartisma are tempered out. | In altierran, both the schisma and the quartisma are tempered out. | ||
Subgroup: 2.3.5.7.11 | [[Subgroup]]: 2.3.5.7.11 | ||
[[Comma list]]: 32805/32768, 161280/161051 | [[Comma list]]: 32805/32768, 161280/161051 | ||
{{Mapping|legend=1| 1 0 15 1 5 | 0 1 -8 1 -1 | 0 0 0 5 1 }} | |||
{{ | [[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~3/2 = 701.7299{{c}}, ~33/32 = 53.3889{{c}} | ||
{{Optimal ET sequence|legend=1| 24, 46c, 65d, 89, 135, 159, 224, 383, 472, 696, 1168, 1327, 1551, 2023e }} | |||
[[Badness]] (Smith): 4.563 × 10<sup>-3</sup> | |||
[[Badness]]: 4.563 × 10<sup>-3</sup> | |||
=== Tenierian === | === Tenierian === | ||
Subgroup: 2.3.5.7.11.13 | Subgroup: 2.3.5.7.11.13 | ||
Comma list: 10985/10976, 32805/32768, 161280/161051 | |||
Mapping: {{mapping| 1 2 -1 3 3 5 | 0 -3 24 -3 3 -11 | 0 0 0 5 1 5 }} | |||
: mapping generators: ~2, ~11/10, ~33/32 | |||
Optimal tuning (POTE): ~2 = 1200.0000{{c}}, ~11/10 = 166.0628{{c}}, ~33/32 = 53.4151{{c}} | |||
Badness (Smith): 16.903 × 10<sup>-3</sup> | |||
== Meanquarter == | == Meanquarter == | ||
In meanquarter, both the meantone comma and the quartisma are tempered out. | In meanquarter, both the meantone comma and the quartisma are tempered out. | ||
Subgroup: 2.3.5.7.11 | [[Subgroup]]: 2.3.5.7.11 | ||
[[Comma list]]: 81/80, 4128768/4026275 | [[Comma list]]: 81/80, 4128768/4026275 | ||
{{Mapping|legend=1| 1 0 -4 1 5 | 0 1 4 1 -1 | 0 0 5 1 }} | |||
: mapping generators: ~2, ~3, ~33/32 | |||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~3/2 = 697.3325{{c}}, ~33/32 = 54.1064{{c}} | ||
{{ | {{Optimal ET sequence|legend=1| 24, 43, 67, 110c }} | ||
[[Badness]]: 15.125 × 10<sup>-3</sup> | [[Badness]] (Smith): 15.125 × 10<sup>-3</sup> | ||
== Coin == | == Coin == | ||
In coin, both the magic comma and the quartisma are tempered out. | In coin, both the magic comma and the quartisma are tempered out. | ||
Subgroup: 2.3.5.7.11 | [[Subgroup]]: 2.3.5.7.11 | ||
[[Comma list]]: 3125/3072, 117440512/117406179 | [[Comma list]]: 3125/3072, 117440512/117406179 | ||
{{Mapping|legend=1| 1 0 2 1 5 | 0 5 1 0 -6 | 0 0 0 5 1 }} | |||
: mapping generators: ~2, ~5/4, ~9/7 | |||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~5/4 = 380.3623{{c}}, ~9/7 = 433.3120{{c}} | ||
{{ | {{Optimal ET sequence|legend=1| 19d, 22 }} | ||
[[Badness]]: 70.470 × 10<sup>-3</sup> | [[Badness]] (Smith): 70.470 × 10<sup>-3</sup> | ||
== Escapismic == | == Escapismic == | ||
In escapisimic, both the escapade comma and the quartisma are tempered out, thus, it is essentially an [[escapade]] [[expansion]]. | |||
[[Subgroup]]: 2.3.5.7.11 | |||
[[Comma list]]: 117440512/117406179, 4294967296/4271484375 | [[Comma list]]: 117440512/117406179, 4294967296/4271484375 | ||
{{Mapping|legend=1| 1 2 2 3 3 | 0 -9 7 -4 10 | 0 0 0 5 1 }} | |||
: mapping generators: ~2, ~?, ~33/32 | |||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~33/32 = 55.3538{{c}} | ||
{{ | {{Optimal ET sequence|legend=1| 21, 22, 43, 65d, 521d, 543, 564, 586, 629c, 651 }} | ||
[[Badness]]: 64.233 × 10<sup>-3</sup> | [[Badness]] (Smith): 64.233 × 10<sup>-3</sup> | ||
== Dietismic == | == Dietismic == | ||
In dietismic, both the diaschisma and the quartisma are tempered out. Dietismic can easily be further tempered to [[Diaschismic family #Shrutar|shrutar]], and in fact, it is rather unusual to find a different tempering option. | In dietismic, both the diaschisma and the quartisma are tempered out. Dietismic can easily be further tempered to [[Diaschismic family #Shrutar|shrutar]], and in fact, it is rather unusual to find a different tempering option. | ||
Subgroup: 2.3.5.7.11 | [[Subgroup]]: 2.3.5.7.11 | ||
[[Comma list]]: 2048/2025, 117440512/117406179 | [[Comma list]]: 2048/2025, 117440512/117406179 | ||
{{Mapping|legend=1| 2 0 11 2 10 | 0 1 -2 1 -1 | 0 0 0 5 1 }} | |||
: mapping generators: ~45/32, ~3, ~33/32 | |||
[[ | [[Optimal tuning]] ([[POTE]]): ~45/32 = 600.0000{{c}}, ~3/2 = 704.5238{{c}}, ~33/32 = 53.4408{{c}} | ||
{{ | {{Optimal ET sequence|legend=1| 22, 46, 68, 114 }} | ||
[[Badness]]: 23.250 × 10<sup>-3</sup> | [[Badness]] (Smith): 23.250 × 10<sup>-3</sup> | ||
Scales: | Scales: | ||
| Line 139: | Line 147: | ||
== Kleirtismic == | == Kleirtismic == | ||
In kleirtismic, both the kleisma and the quartisma are tempered out. The ''kleir-'' in ''kleirtismic'' is meant to be pronounced the same as ''Clair''. | |||
[[Subgroup]]: 2.3.5.7.11 | |||
Subgroup: 2.3.5.7.11 | |||
[[Comma list]]: 15625/15552, 117440512/117406179 | [[Comma list]]: 15625/15552, 117440512/117406179 | ||
{{Mapping|legend=1| 1 0 1 1 5 | 0 6 5 1 -7 | 0 0 0 5 1 }} | |||
: mapping generators: ~2, ~6/5, ~68/55 | |||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~6/5 = 317.0291{{c}}, ~68/55 = 370.2940{{c}} | ||
{{ | {{Optimal ET sequence|legend=1| 68, 91, 159, 246, 337, 405 }} | ||
[[Badness]]: 26.882 × 10<sup>-3</sup> | [[Badness]] (Smith): 26.882 × 10<sup>-3</sup> | ||
== Doublefour == | == Doublefour == | ||
In doublefour, both the tetracot comma and the quartisma are tempered out. | In doublefour, both the tetracot comma and the quartisma are tempered out. | ||
Subgroup: 2.3.5.7.11 | [[Subgroup]]: 2.3.5.7.11 | ||
[[Comma list]]: 20000/19683, 100656875/99090432 | [[Comma list]]: 20000/19683, 100656875/99090432 | ||
{{Mapping|legend=1| 1 1 1 2 4 | 0 4 9 4 -4 | 0 0 0 5 1 }} | |||
: mapping generators: ~2, ~425/384, ~33/32 | |||
[[POTE | [[Optimal tuning]] ([[POTE]]): ~2 = 1200.000{{c}}, ~425/384 = 175.9566{{c}}, ~33/32 = 52.9708{{c}} | ||
{{ | {{Optimal ET sequence|legend=1| 48d, 68, 116d, 157c, 225 }} | ||
[[Badness]]: 81.083 × 10<sup>-3</sup> | [[Badness]] (Smith): 81.083 × 10<sup>-3</sup> | ||
== Quarterframe == | == Quarterframe == | ||
This is actually a microtemperament involving the [[lehmerisma]] and the [[frameshift comma]]. It is also a weak extension of the [[monzismic]] temperament. | |||
[[Subgroup]]: 2.3.5.7.11 | |||
[[Comma list]]: 3025/3024, 26214400/26198073, 29296875/29218112 | |||
{{Mapping|legend=1| 1 4 47 130 26 | 0 -6 -111 -316 -56 }} | |||
: mapping generators: ~2, ~160/121 | |||
[[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~160/121 = 483.0098{{c}} | |||
{{Optimal ET sequence|legend=1| 159, 559d, 718, 877 }} | |||
[[Badness]] (Smith): 0.154578 | |||
== Ravine == | |||
This temperament was initially defined upon the 33/32 generator in 1619edo, producing a 832 & 1619 temperament. | |||
[[Subgroup]]: 2.3.5.7.11 | |||
[[Comma list]]: 514714375/514434888, 117440512/117406179, 1220703125/1219784832 | |||
{{Mapping|legend=1| 1 26 21 27 -21 | 0 -549 -420 -544 550 }} | |||
: mapping generators: ~2, ~33/32 | |||
[[Optimal tuning]] ([[CTE]]): ~2 = 1200.000{{c}}, ~33/32 = 53.366{{c}} | |||
{{Optimal ET sequence|legend=1| 832, 1619 }} | |||
[[Comma list]]: | === 13-limit === | ||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 196625/196608, 200000/199927, 2912000/2910897, 3764768/3764475 | |||
Mapping: {{mapping| 1 26 21 27 -21 21 | 0 -549 -420 -544 550 -389 }} | |||
Optimal tuning (CTE): ~2 = 1200.000{{c}}, ~33/32 = 53.366 | |||
{{Optimal ET sequence|legend=0| 832, 1619 }} | |||
== Prequartismic == | |||
This temperament was named because 3125edo was the only one confirmed for tempering out the quartisma before its discovery as significance of the difference between five 33/32's and 7/6. Defined upon the 33/32 (or 64/33) generator in 3125edo, in terms of patent vals it can be described as 3125 & 4991 or 3125 & 1866. | |||
[[Subgroup]]: 2.3.5.7.11 | |||
[[Comma list]]: {{monzo| 24 -6 0 1 -5 }}, {{monzo| -1 4 11 -11 0 }}, {{monzo| -19 -25 14 13 -3 }} | |||
{{Mapping|legend=1| 1 1389 890 1395 -1383 | 0 -1452 -929 -1457 1451 }} | |||
: mapping generators: ~2, ~64/33 | |||
[[Optimal tuning]] ([[CTE]]): ~2 = 1200.000{{c}}, ~64/33 = 1146.624{{c} | |||
{{Optimal ET sequence|legend=1| 1259e, 1866, 3125, 4384e, 4991, 6250e, 8116d, 7509ee, 9375e, 11241de }} | |||
=== 13-limit === | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 1990656/1990625, 14236560/14235529, 117440512/117406179, 1181640625/1181599328 | |||
{{ | Mapping: {{mapping| 1 1389 890 1395 -1383 -282 | 0 -1452 -929 -1457 1451 299 }} | ||
Optimal tuning (CTE): ~2 = 1200.000{{c}}, ~64/33 = 1146.624{{c}} | |||
[[Category: | [[Category:Commatic realms]] | ||
[[Category:The Quartercache| ]] <!-- main article --> | [[Category:The Quartercache| ]] <!-- main article --> | ||
[[Category:Quartismic]] | [[Category:Quartismic]] | ||
Latest revision as of 15:31, 17 April 2026
- This is a list showing technical temperament data. For an explanation of what information is shown here, you may look at the technical data guide for regular temperaments.
The Quartercache is a collection of temperaments of different ranks, including subgroup temperaments, that all temper out the quartisma – the unnoticeable comma with the ratio 117440512/117406179, and a monzo of [24 -6 0 1 -5⟩. Among the members of this family are quartic, altierran, meanquarter, coin, escapismic, dietismic, kleirtismic, doublefour and quarterframe.
Quartismic
See Catalog of rank-4 temperaments #Quartismic (117440512/117406179).
Quartic
There are some temperaments that temper out the quartisma despite having limited accuracy in their approximations of five-limit intervals. This particular temperament is the parent temperament of all such no-fives children, and is referred to as Saquinlu-azo in color notation.
Subgroup: 2.3.7.11
Comma list: 117440512/117406179
Mapping: [⟨1 0 1 5], ⟨0 1 1 -1], ⟨0 0 5 1]]
- mapping generators: ~2, ~3, ~33/32
- WE: ~2 = 1199.9875 ¢, ~3/2 = 701.9753 ¢, ~33/32 = 53.3743 ¢
- error map: ⟨-0.012 +0.008 -0.004 +0.031]
- CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.9802 ¢, ~33/32 = 53.3730 ¢
- error map: ⟨0.000 +0.025 +0.019 +0.075]
Optimal ET sequence: 21, 22, 24, 43, 46, 89, 135, 359, 494, 629, 742, 877, 1012, 1506, 2248, 2383, 2518, 7419, 8431e, 10949e, 13467e
Badness (Sintel): 0.416
The following rank-2 mos scales of quartismic have been found:
- Rank 2 scale (106.71461627796054, 1200.0), 5|5
- The following scale tree has been found: 1200-106.71461627796054-12-11 Scale Tree
Direct quartismic
Instead of 11-limit, direct quartismic is defined directly in the 2.7/3.33 subgroup, as the quartisma itself was discovered via a representation where the generator is 33/32 and five of them stack to 7/6. 45edo is an excellent tuning. It was named by Eliora in 2023.
Subgroup: 2.7/3.33
Comma list: 117440512/117406179
Subgroup-val mapping: [⟨1 1 5], ⟨0 5 1]]
- mapping generators: ~2, ~33/32
- error map: ⟨-0.012 -0.012 +0.039]
- error map: ⟨0.000 -0.006 +0.100]
Optimal ET sequence: 21, 22, 45, 337, 382, 427, 472, 517, 562, 607, 652, 1911, 2563, 3215, 5778, 8993*
* wart for 33
Altierran
In altierran, both the schisma and the quartisma are tempered out.
Subgroup: 2.3.5.7.11
Comma list: 32805/32768, 161280/161051
Mapping: [⟨1 0 15 1 5], ⟨0 1 -8 1 -1], ⟨0 0 0 5 1]]
Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~3/2 = 701.7299 ¢, ~33/32 = 53.3889 ¢
Optimal ET sequence: 24, 46c, 65d, 89, 135, 159, 224, 383, 472, 696, 1168, 1327, 1551, 2023e
Badness (Smith): 4.563 × 10-3
Tenierian
Subgroup: 2.3.5.7.11.13
Comma list: 10985/10976, 32805/32768, 161280/161051
Mapping: [⟨1 2 -1 3 3 5], ⟨0 -3 24 -3 3 -11], ⟨0 0 0 5 1 5]]
- mapping generators: ~2, ~11/10, ~33/32
Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~11/10 = 166.0628 ¢, ~33/32 = 53.4151 ¢
Badness (Smith): 16.903 × 10-3
Meanquarter
In meanquarter, both the meantone comma and the quartisma are tempered out.
Subgroup: 2.3.5.7.11
Comma list: 81/80, 4128768/4026275
Mapping: [⟨1 0 -4 1 5], ⟨0 1 4 1 -1], ⟨0 0 5 1]]
- mapping generators: ~2, ~3, ~33/32
Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~3/2 = 697.3325 ¢, ~33/32 = 54.1064 ¢
Optimal ET sequence: 24, 43, 67, 110c
Badness (Smith): 15.125 × 10-3
Coin
In coin, both the magic comma and the quartisma are tempered out.
Subgroup: 2.3.5.7.11
Comma list: 3125/3072, 117440512/117406179
Mapping: [⟨1 0 2 1 5], ⟨0 5 1 0 -6], ⟨0 0 0 5 1]]
- mapping generators: ~2, ~5/4, ~9/7
Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~5/4 = 380.3623 ¢, ~9/7 = 433.3120 ¢
Badness (Smith): 70.470 × 10-3
Escapismic
In escapisimic, both the escapade comma and the quartisma are tempered out, thus, it is essentially an escapade expansion.
Subgroup: 2.3.5.7.11
Comma list: 117440512/117406179, 4294967296/4271484375
Mapping: [⟨1 2 2 3 3], ⟨0 -9 7 -4 10], ⟨0 0 0 5 1]]
- mapping generators: ~2, ~?, ~33/32
Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~33/32 = 55.3538 ¢
Optimal ET sequence: 21, 22, 43, 65d, 521d, 543, 564, 586, 629c, 651
Badness (Smith): 64.233 × 10-3
Dietismic
In dietismic, both the diaschisma and the quartisma are tempered out. Dietismic can easily be further tempered to shrutar, and in fact, it is rather unusual to find a different tempering option.
Subgroup: 2.3.5.7.11
Comma list: 2048/2025, 117440512/117406179
Mapping: [⟨2 0 11 2 10], ⟨0 1 -2 1 -1], ⟨0 0 0 5 1]]
- mapping generators: ~45/32, ~3, ~33/32
Optimal tuning (POTE): ~45/32 = 600.0000 ¢, ~3/2 = 704.5238 ¢, ~33/32 = 53.4408 ¢
Optimal ET sequence: 22, 46, 68, 114
Badness (Smith): 23.250 × 10-3
Scales:
Rank 2 scale (52.6800, 2/1), 13|9
Rank 2 scale (53.3742, 2/1), 13|9
Kleirtismic
In kleirtismic, both the kleisma and the quartisma are tempered out. The kleir- in kleirtismic is meant to be pronounced the same as Clair.
Subgroup: 2.3.5.7.11
Comma list: 15625/15552, 117440512/117406179
Mapping: [⟨1 0 1 1 5], ⟨0 6 5 1 -7], ⟨0 0 0 5 1]]
- mapping generators: ~2, ~6/5, ~68/55
Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~6/5 = 317.0291 ¢, ~68/55 = 370.2940 ¢
Optimal ET sequence: 68, 91, 159, 246, 337, 405
Badness (Smith): 26.882 × 10-3
Doublefour
In doublefour, both the tetracot comma and the quartisma are tempered out.
Subgroup: 2.3.5.7.11
Comma list: 20000/19683, 100656875/99090432
Mapping: [⟨1 1 1 2 4], ⟨0 4 9 4 -4], ⟨0 0 0 5 1]]
- mapping generators: ~2, ~425/384, ~33/32
Optimal tuning (POTE): ~2 = 1200.000 ¢, ~425/384 = 175.9566 ¢, ~33/32 = 52.9708 ¢
Optimal ET sequence: 48d, 68, 116d, 157c, 225
Badness (Smith): 81.083 × 10-3
Quarterframe
This is actually a microtemperament involving the lehmerisma and the frameshift comma. It is also a weak extension of the monzismic temperament.
Subgroup: 2.3.5.7.11
Comma list: 3025/3024, 26214400/26198073, 29296875/29218112
Mapping: [⟨1 4 47 130 26], ⟨0 -6 -111 -316 -56]]
- mapping generators: ~2, ~160/121
Optimal tuning (POTE): ~2 = 1200.0000 ¢, ~160/121 = 483.0098 ¢
Optimal ET sequence: 159, 559d, 718, 877
Badness (Smith): 0.154578
Ravine
This temperament was initially defined upon the 33/32 generator in 1619edo, producing a 832 & 1619 temperament.
Subgroup: 2.3.5.7.11
Comma list: 514714375/514434888, 117440512/117406179, 1220703125/1219784832
Mapping: [⟨1 26 21 27 -21], ⟨0 -549 -420 -544 550]]
- mapping generators: ~2, ~33/32
Optimal tuning (CTE): ~2 = 1200.000 ¢, ~33/32 = 53.366 ¢
Optimal ET sequence: 832, 1619
13-limit
Subgroup: 2.3.5.7.11.13
Comma list: 196625/196608, 200000/199927, 2912000/2910897, 3764768/3764475
Mapping: [⟨1 26 21 27 -21 21], ⟨0 -549 -420 -544 550 -389]]
Optimal tuning (CTE): ~2 = 1200.000 ¢, ~33/32 = 53.366
Optimal ET sequence: 832, 1619
Prequartismic
This temperament was named because 3125edo was the only one confirmed for tempering out the quartisma before its discovery as significance of the difference between five 33/32's and 7/6. Defined upon the 33/32 (or 64/33) generator in 3125edo, in terms of patent vals it can be described as 3125 & 4991 or 3125 & 1866.
Subgroup: 2.3.5.7.11
Comma list: [24 -6 0 1 -5⟩, [-1 4 11 -11 0⟩, [-19 -25 14 13 -3⟩
Mapping: [⟨1 1389 890 1395 -1383], ⟨0 -1452 -929 -1457 1451]]
- mapping generators: ~2, ~64/33
Optimal tuning (CTE): ~2 = 1200.000 ¢, ~64/33 = 1146.624{{c}
Optimal ET sequence: 1259e, 1866, 3125, 4384e, 4991, 6250e, 8116d, 7509ee, 9375e, 11241de
13-limit
Subgroup: 2.3.5.7.11.13
Comma list: 1990656/1990625, 14236560/14235529, 117440512/117406179, 1181640625/1181599328
Mapping: [⟨1 1389 890 1395 -1383 -282], ⟨0 -1452 -929 -1457 1451 299]]
Optimal tuning (CTE): ~2 = 1200.000 ¢, ~64/33 = 1146.624 ¢