Sensipent family: Difference between revisions
m →Sensipent: move sensible for breathing room and a better sense of natural placement |
m →Other subgroup extensions: complete |
||
| Line 706: | Line 706: | ||
Badness (Sintel): 0.283 | Badness (Sintel): 0.283 | ||
=== Sensible === | |||
{{See also| Sensipent #Sensible interval table }} | |||
Sensible is an extension of sensipent with prime 11 of dubious canonicity but significantly higher accuracy than [[sensi]]. It interprets the generator as [[165/128]]~[[128/99]] by tempering out [[8019/8000]] so that [[11/8]] is reached as ([[10/9]])<sup>3</sup>. This extension is very strong as supported by the [[optimal ET sequence]] going very far and as supported by another observation that it also tempers out the [[semiporwellisma]], which is equal to [[S-expression|S31⋅S32<sup>2</sup>]] (thus forming the S-expression-based comma list). The vanish of the semiporwellisma, a [[lopsided comma]], implies that this temperament equates ([[33/32]])<sup>2</sup> with [[16/15]] as well as that a natural extension to prime 31 exists through {[[961/960]] ({{s|31}}), [[1024/1023]] ({{s|32}})}, which we will see is very accurate, but this itself suggests that an extension with prime 17 is reasonably accurate through tempering out [[1089/1088]] ({{s|33}}) so that a slightly sharp ~[[22/17]] is equated with the generator. | |||
The aforementioned extension with prime 17 through tempering out 1089/1088 implies tempering out [[256/255]] ({{s|16}}), as {{nowrap| 256/255 {{=}} (22/17)/(165/128) }}. | |||
Sensible uses the accurate mapping of prime 31 in sensipent, so that the sensible generator serves many roles in subgroup harmony, but it is not ~[[9/7]] or ~[[13/10]] which would incur more damage. Its [[S-expression]]-based comma list {{nowrap| is {([[8019/8000|S9/S10]], [[256/255|S16]],) [[529/528|S23]], [[576/575|S24]], [[961/960|S31]], [[1024/1023|S32]], [[1089/1088|S33]]} }} implying also tempering out [[496/495]] (S31⋅S32) and [[528/527]] (S32⋅S33) as well as [[16337/16335]] (S31/S33) = ([[17/15]])/([[33/31]])<sup>2</sup>. A notable [[patent val]] tuning not appearing in the optimal ET sequence is [[157edo]]. A notable non-patent val is [[84edo|84g]]. | |||
Subgroup: 2.3.5.11 | |||
Comma list: 8019/8000, 16384/16335 | |||
Subgroup-val mapping: {{mapping| 1 -1 -1 9 | 0 7 9 -15 }} | |||
: mapping generators: ~2, ~128/99 | |||
Optimal tunings: | |||
* WE: ~2 = 1199.6725{{c}}, ~128/99 = 443.0183{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~128/99 = 443.1341{{c}} | |||
{{Optimal ET sequence|legend=0| 19, 46, 65, 176, 241, 306 }} | |||
Badness (Sintel): 0.728 | |||
==== 2.3.5.11.17 subgroup ==== | |||
Subgroup: 2.3.5.11.17 | |||
Comma list: 256/255, 1089/1088, 1377/1375 | |||
Subgroup-val mapping: {{mapping| 1 -1 -1 9 10 | 0 7 9 -15 -16 }} | |||
: mapping generators: ~2, ~22/17 | |||
Optimal tunings: | |||
* WE: ~2 = 1199.5016{{c}}, ~22/17 = 443.0038{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~22/17 = 443.1878{{c}} | |||
{{Optimal ET sequence|legend=0| 19, 46, 65, 111, 176g }} | |||
Badness (Sintel): 0.639 | |||
==== 2.3.5.11.17.23 subgroup ==== | |||
Subgroup: 2.3.5.11.17.23 | |||
Comma list: 256/255, 576/575, 1089/1088, 1377/1375 | |||
Subgroup-val mapping: {{mapping| 1 -1 -1 9 10 6 | 0 7 9 -15 -16 -4 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1199.6207{{c}}, ~22/17 = 443.0400{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~22/17 = 443.1808{{c}} | |||
{{Optimal ET sequence|legend=0| 19, 46, 65, 111, 176g }} | |||
Badness (Sintel): 0.555 | |||
==== 2.3.5.11.17.23.31 subgroup ==== | |||
Subgroup: 2.3.5.11.17.23.31 | |||
Comma list: 256/255, 576/575, 961/960, 1089/1088, 1377/1375 | |||
Subgroup-val mapping: {{mapping| 1 -1 -1 9 10 6 2 | 0 7 9 -15 -16 -4 8 }} | |||
Optimal tunings: | |||
* WE: ~2 = 1199.6623{{c}}, ~22/17 = 443.0616{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~22/17 = 443.1858{{c}} | |||
{{Optimal ET sequence|legend=0| 19, 46, 65, 111, 176g }} | |||
Badness (Sintel): 0.490 | |||
[[Category:Temperament families]] | [[Category:Temperament families]] | ||
[[Category:Sensipent family| ]] <!-- main article --> | [[Category:Sensipent family| ]] <!-- main article --> | ||
[[Category:Rank 2]] | [[Category:Rank 2]] | ||