Unicorn family: Difference between revisions
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{{Technical data page}} | |||
The '''unicorn family''' tempers out the [[unicorn comma]], 1594323/1562500 = {{monzo| -2 13 -8 }}. The canonical extension to the 7-limit is by interpreting the generator as a slightly flattened [[~]][[28/27]] so that a flat [[~]][[6/5]] is found at 5 generators, corresponding to tempering [[126/125]], the [[octaphore]] and the [[hemimage comma]]. | |||
== Unicorn == | |||
By noticing that the generator is very close to [[28/27]] we find the extension to the 7-limit by tempering the [[octaphore]] (which finds [[~]][[9/7]] at 7 gens and [[~]][[4/3]] at 8 gens, hence its name) and [[126/125]] (finding [[~]][[6/5]] at 5 gens). From this we can observe that the most natural extension is by equating adjacent [[superparticular interval]]s, by tempering the [[square-particular]]s between them, leading to its [[S-expression]]-based comma list of {[[676/675|S26]], [[729/728|S27]], [[784/783|S28]], [[841/840|S29]]}, to which experimentation shows we can find a reasonable mapping for prime 43 at -11 gens while all other primes require either quite complex mappings (being significantly positive rather than negative) or require high error or both. | |||
[[Subgroup]]: 2.3.5 | |||
[[Comma list]]: 1594323/1562500 | |||
{{Mapping|legend=1| 1 2 3 | 0 -8 -13 }} | |||
= | [[Optimal tuning]]s: | ||
* [[CTE]]: 2 = 1\1, ~250/243 = 62.441 | |||
* [[POTE]]: 2 = 1\1, ~250/243 = 62.458 | |||
{{Optimal ET sequence|legend=1| 19, 58, 77, 96, 173, 269 }} | |||
[[Badness]]: | |||
* Smith: 0.150487 | |||
* Dirichlet: 3.530 | |||
== | == Septimal unicorn == | ||
{{See also| Octaphore }} | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: [[126/125]], [[10976/10935]] | |||
= | {{Mapping|legend=1| 1 2 3 4 | 0 -8 -13 -23 }} | ||
POTE | [[Optimal tuning]]s: | ||
* [[CTE]]: 2 = 1\1, ~28/27 = 62.324 | |||
* [[POTE]]: 2 = 1\1, ~28/27 = 62.278 | |||
Badness: 0. | |||
{{Optimal ET sequence|legend=1| 19, 39d, 58, 77, 135c, 212c }} | |||
Badness: | |||
* Smith: 0.040913 | |||
* Dirichlet: 1.035 | |||
=== 2.3.5.7.13 subgroup === | |||
[[Subgroup]]: 2.3.5.7.13 | |||
POTE | |||
[[Comma list]]: [[126/125]], [[351/350]], [[676/675]] | |||
{{Mapping|legend=1| 1 2 3 4 5 | 0 -8 -13 -23 -25 }} | |||
Badness: 0. | |||
[[Optimal tuning]] ([[CTE]]): 2 = 1\1, ~28/27 = 62.339 | |||
{{Optimal ET sequence|legend=1| 19, 39df, 58, 77, 212cf }} | |||
POTE | Badness (Sintel): 0.590 | ||
==== 2.3.5.7.13.29 subgroup ==== | |||
[[Subgroup]]: 2.3.5.7.13.29 | |||
Badness: 0. | |||
[[Comma list]]: [[126/125]], [[729/728]], [[784/783]], [[841/840]] | |||
{{Mapping|legend=1| 1 2 3 4 5 6 | 0 -8 -13 -23 -25 -22 }} | |||
POTE | [[Optimal tuning]] ([[CTE]]): 2 = 1\1, ~28/27 = 62.334 | ||
{{Optimal ET sequence|legend=1| 19, 39dfj, 58, 77, 212cfn }} | |||
Badness: 0. | Badness (Sintel): 0.487 | ||
==== 2.3.5.7.13.29.43 subgroup ==== | |||
A notable tuning of unicorn not appearing in the [[optimal ET sequence]] here is [[96edo]] using the 96d val (with a 963[[cent|¢]] [[~]][[7/4]] similar to that of [[meanpop]]), an alternative to [[77edo]] that sacrifices the accuracy of prime 7 in favour of a more accurate [[5/4]] and [[43/32]]. | |||
[[Subgroup]]: 2.3.5.7.13.29.43 | |||
[[Comma list]]: [[126/125]], [[729/728]], [[784/783]], [[841/840]], 216/215 | |||
Badness: 0. | |||
{{Mapping|legend=1| 1 2 3 4 5 6 6 | 0 -8 -13 -23 -25 -22 -11 }} | |||
[[Optimal tuning]] ([[CTE]]): 2 = 1\1, ~28/27 = 62.339 | |||
{{Optimal ET sequence|legend=1| 19, 39dfj, 58, 77, 135c, 212cfn }} | |||
Badness (Sintel): 0.514 | |||
=== Alicorn === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 126/125, 540/539, 896/891 | |||
Mapping: {{mapping| 1 2 3 4 3 | 0 -8 -13 -23 9 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.101 | |||
{{Optimal ET sequence|legend=1| 19, 39d, 58 }} | |||
Badness: 0.039156 | |||
==== 13-limit ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 126/125, 144/143, 196/195, 676/675 | |||
Mapping: {{mapping| 1 2 3 4 3 5 | 0 -8 -13 -23 9 -25 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.119 | |||
{{Optimal ET sequence|legend=1| 19, 39df, 58 }} | |||
Badness: 0.023667 | |||
=== Camahueto === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 126/125, 385/384, 10976/10935 | |||
Mapping: {{mapping| 1 2 3 4 2 | 0 -8 -13 -23 28 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.431 | |||
{{Optimal ET sequence|legend=1| 19, 58e, 77, 96d, 173d }} | |||
Badness: 0.065940 | |||
==== 13-limit ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 126/125, 196/195, 385/384, 676/675 | |||
Mapping: {{mapping| 1 2 3 4 2 5 | 0 -8 -13 -23 28 -25 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.434 | |||
{{Optimal ET sequence|legend=1| 19, 58e, 77, 96d, 173d }} | |||
Badness: 0.036155 | |||
=== Qilin === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 126/125, 176/175, 10976/10935 | |||
Mapping: {{mapping| 1 2 3 4 6 | 0 -8 -13 -23 -49 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.196 | |||
{{Optimal ET sequence|legend=1| 58, 77, 135c, 193c, 328cc }} | |||
Badness: 0.041426 | |||
==== 13-limit ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 126/125, 176/175, 196/195, 2200/2197 | |||
Mapping: {{mapping| 1 2 3 4 6 5 | 0 -8 -13 -23 -49 -25 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.197 | |||
{{Optimal ET sequence|legend=1| 58, 77, 135c, 193cf, 328ccff }} | |||
Badness: 0.022842 | |||
=== Monocerus === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 126/125, 243/242, 5488/5445 | |||
Mapping: {{mapping| 2 4 6 8 9 | 0 -8 -13 -23 -20 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.292 | |||
{{Optimal ET sequence|legend=1| 58, 96d, 154, 212ce, 366cce }} | |||
Badness: 0.052757 | |||
==== 13-limit ==== | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 126/125, 196/195, 364/363, 676/675 | |||
Mapping: {{mapping| 2 4 6 8 9 10 | 0 -8 -13 -23 -20 -25 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~28/27 = 62.301 | |||
{{Optimal ET sequence|legend=1| 58, 96d, 154, 366ccef }} | |||
Badness: 0.028795 | |||
== Rhinoceros == | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 49/48, 4375/4374 | |||
{{Mapping|legend=1| 1 2 3 3 | 0 -8 -13 -4 }} | |||
[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~21/20 = 62.920 | |||
{{Optimal ET sequence|legend=1| 1c, 19 }} | |||
[[Badness]]: 0.081864 | |||
=== 11-limit === | |||
Subgroup: 2.3.5.7.11 | |||
Comma list: 49/48, 100/99, 126/121 | |||
Mapping: {{mapping| 1 2 3 3 4 | 0 -8 -13 -4 -10 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~21/20 = 62.874 | |||
{{Optimal ET sequence|legend=1| 1ce, 19 }} | |||
Badness: 0.059319 | |||
=== 13-limit === | |||
Subgroup: 2.3.5.7.11.13 | |||
Comma list: 49/48, 78/77, 100/99, 126/121 | |||
Mapping: {{mapping| 1 2 3 3 4 4 | 0 -8 -13 -4 -10 -6 }} | |||
Optimal tuning (POTE): ~2 = 1\1, ~21/20 = 63.043 | |||
{{Optimal ET sequence|legend=1| 1ce, 19 }} | |||
Badness: 0.039343 | |||
[[Category:Temperament families]] | |||
[[Category:Pages with mostly numerical content]] | |||
[[Category:Unicorn family| ]] <!-- main article --> | |||
[[Category:Unicorn| ]] <!-- key article --> | |||
[[Category:Rank 2]] |