Septischismic family: Difference between revisions

m FloraC moved page Garischismic family to Septischismic family: Rename (see talk)
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=== Overview to extensions ===
=== Overview to extensions ===
The best extension to the 11-limit identifies the [[11/8]] at +23 fifths. This is also the mapping used in [[cassandra]], so we also call it [[#Undecimal septischismic (cassaschismic)|cassaschismic]]. An alternative, supported by [[andromeda]], is [[#Androschismic|androschismic]].
The best extension to the 11-limit identifies the [[11/8]] at +23 fifths. This is also the mapping used in the related lower accuracy temperament [[cassandra]], so we also call it [[#Undecimal septischismic (cassaschismic)|cassaschismic]]. An alternative, supported by [[andromeda]], is [[#Androschismic|androschismic]].  


== Undecimal septischismic (cassaschismic) ==
== Undecimal septischismic (cassaschismic) ==
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Undecimal septischismic, a.k.a. cassaschismic, maps [[prime interval|prime]] [[11/1|11]] to +23 perfect fifths, so it is an [[expansion]] of the [[2.3.7.11 subgroup|2.3.7.11-subgroup]] version of [[gary]]. It is naturally a no-17 19-limit temperament, where the undevicesimal schisma of [[513/512]] is also added to the generic aberschisma step.  
Undecimal septischismic, a.k.a. cassaschismic, maps [[prime interval|prime]] [[11/1|11]] to +23 perfect fifths, so it is an [[expansion]] of the [[2.3.7.11 subgroup|2.3.7.11-subgroup]] version of [[gary]]. It is naturally a no-17 19-limit temperament, where the undevicesimal schisma of [[513/512]] is also added to the generic aberschisma step.  
Septischismic has two reasonable extensions to add 17, which coalesce in the newt extension 270 & 311. Septinoellismic finds it a tad unintuitively as two aberschismas up and 4 commas down from a major second (^^4sM2) yet supported by 94edo, and septisperasmic finds it 4 aberschismas up from a minor second (4^m2), which can be deemed the more intuitive mapping, albeit it is not supported by any cassandra tuning except for 12edo, which notably has a very well tuned 17/16.
Septischismic has two reasonable extensions to add 29 and 31 into the system, that like before, coalesce in the newt extension 270 & 311 too. Septiplanar finds them in the chain of fifths, without need of third generators, thus they in the same plane to the rank-2 chain of fifths, mapped respectively to a major seventh – three commas (3sM7) and a perfect octave minus two commas (hP8). Because this extension is reached only through the septischismic chain of fifths, it is also available in [[gary]].


[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11
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Comma list: 2080/2079, 4096/4095, 19712/19683
Comma list: 2080/2079, 4096/4095, 19712/19683


Mapping: {{mapping| 1 0 0 25 -33 -13 | 0 1 0 -14 23 12 | 0 0 1 0 0 -1 }}
{{Mapping|legend=0| 1 0 0 25 -33 -13 | 0 1 0 -14 23 12 | 0 0 1 0 0 -1 }}


Optimal tunings:  
Optimal tunings:  
* WE: ~2 = 1199.9785{{c}}, ~3/2 = 702.2180{{c}}, ~5/4 = 386.2991{{c}}
* WE: ~2 = 1199.9785{{c}}, ~3/2 = 702.2180{{c}}, ~5/4 = 386.2991{{c}}
: error map: {{val| -0.022 +0.241 -0.058 -0.114 -0.089 -0.146 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2303{{c}}, ~5/4 = 386.3031{{c}}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2303{{c}}, ~5/4 = 386.3031{{c}}
: error map: {{val| 0.000 +0.275 -0.011 -0.050 -0.021 -0.067 }}


{{Optimal ET sequence|legend=0| 41, 53, 94, 176, 217, 270, 581, 851, 2283b }}
{{Optimal ET sequence|legend=0| 41, 53, 94, 176, 217, 270, 581, 851, 2283b }}
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Badness (Sintel): 0.815
Badness (Sintel): 0.815


=== 2.3.5.7.11.13.19 subgroup ===
==== 2.3.5.7.11.13.19 subgroup ====
Subgroup: 2.3.5.7.11.13.19
Subgroup: 2.3.5.7.11.13.19


Comma list: 1216/1215, 1540/1539, 1729/1728, 2080/2079
Comma list: 1216/1215, 1540/1539, 1729/1728, 2080/2079


Subgroup-val mapping: {{mapping| 1 0 0 25 -33 -13 -6 | 0 1 0 -14 23 12 5 | 0 0 1 0 0 -1 1 }}
{{Mapping|legend=2| 1 0 0 25 -33 -13 -6 | 0 1 0 -14 23 12 5 | 0 0 1 0 0 -1 1 }}


Optimal tunings:  
Optimal tunings:  
* WE: ~2 = 1199.9817{{c}}, ~3/2 = 702.2203{{c}}, ~5/4 = 386.3225{{c}}
* WE: ~2 = 1199.9817{{c}}, ~3/2 = 702.2203{{c}}, ~5/4 = 386.3225{{c}}
: error map: {{val| -0.018 +0.247 -0.028 -0.111 -0.069 -0.152 -0.107 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2307{{c}}, ~5/4 = 386.3245{{c}}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2307{{c}}, ~5/4 = 386.3245{{c}}
: error map: {{val| 0.000 +0.276 +0.011 -0.056 -0.011 -0.084 -0.035 }}


{{Optimal ET sequence|legend=0| 41, 53, 94, 176, 217, 270, 581, 851 }}
{{Optimal ET sequence|legend=0| 41, 53, 94, 176, 217, 270, 581, 851 }}


Badness (Sintel): 0.486
Badness (Sintel): 0.486
===== Septiplanar =====
Subgroup: 2.3.5.7.11.13.19.29
Comma list: 784/783, 1216/1215, 1540/1539, 1729/1728, 2080/2079
{{Mapping|legend=2| 1 0 0 25 -33 -13 -6 23 | 0 1 0 -14 23 12 5 -31 | 0 0 1 0 0 -1 1 0 }}
Optimal tunings:
* WE: ~2 = 1199.9476{{c}}, ~3/2 = 702.2134{{c}}, ~5/4 = 386.3794{{c}}
: error map: {{val| -0.052 +0.206 -0.039 -0.389 +0.113 -0.190 -0.119 +0.603 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2440{{c}}, ~5/4 = 386.3884{{c}}
: error map: {{val| 0.000 +0.289 +0.075 -0.242 +0.293 +0.012 +0.095 +0.860 }}
{{Optimal ET sequence|legend=0| 41, 53j, 94, 176, 217, 270, 487, 581j, 1068j }}
Badness (Sintel): 0.758
====== 2.3.5.7.11.13.19.29.31 subgroup ======
Subgroup: 2.3.5.7.11.13.19.29.31
Comma list: 784/783, 1216/1215, 1540/1539, 1729/1728, 2080/2079, 2233/2232
{{Mapping|legend=2| 1 0 0 25 -33 -13 -6 23 19 | 0 1 0 -14 23 12 5 -31 -24 | 0 0 1 0 0 -1 1 0 0 }}
Optimal tunings:
* WE: ~2 = 1199.9298{{c}}, ~3/2 = 702.2082{{c}}, ~5/4 = 386.4062{{c}}
: error map: {{val| -0.070 +0.183 -0.048 -0.513 +0.173 -0.225 -0.136 +0.353 +0.633 }}
* CWE: ~2 = 1200.000{{c}}, ~3/2 = 702.2495{{c}}, ~5/4 = 386.4198{{c}}
: error map: {{val| 0.000 +0.295 +0.106 -0.319 +0.421 +0.047 +0.154 +0.688 +0.976 }}
{{Optimal ET sequence|legend=0| 41, 94, 135, 176, 217, 270, 311, 487, 581jk, 798k, 1068jk }}
Badness (Sintel): 0.793
===== Septifantasious =====
Septifantasious tempers out [[1625/1624]] – the fantasia, and thus finds 29/16 as 3 aberschismas above 9/5 – that is to say, superminor seventh + 2 aberschismas (^^Sm7), and 31/16 one apotome higher as a hypermajor seventh + 2 aberschismas (^^HM7).
Subgroup: 2.3.5.7.11.13.19.29
Comma list: 1216/1215, 1540/1539, 1625/1624, 1729/1728, 2080/2079
{{Mapping|legend=2| 1 0 0 25 -33 -13 -6 -41 | 0 1 0 -14 23 12 5 26 | 0 0 1 0 0 -1 1 2 }}
Optimal tunings:
* WE: ~2 = 1199.9833{{c}}, ~3/2 = 702.2132{{c}}, ~5/4 = 386.1721{{c}}
: error map: {{val| -0.017 +0.242 -0.175 +0.005 -0.246 -0.091 -0.291 +0.495 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2228{{c}}, ~5/4 = 386.1741{{c}}
: error map: {{val| 0.000 +0.268 -0.140 +0.055 -0.193 -0.028 -0.225 +0.564 }}
{{Optimal ET sequence|legend=0| 41, 53, 94j, 217j, 258j, 270, 581j, 904, 945, 1215j }}
Badness (Sintel): 0.716
====== 2.3.5.7.11.13.19.29.31 subgroup ======
Subgroup: 2.3.5.7.11.13.19.29.31
Comma list: 1216/1215, 1540/1539, 1625/1624, 1729/1728, 2080/2079, 2233/2232
{{Mapping|legend=2| 1 0 0 25 -33 -13 -6 -41 -52 | 0 1 0 -14 23 12 5 26 33 | 0 0 1 0 0 -1 1 2 2 }}
Optimal tunings:
* WE: ~2 = 1199.985{{c}}, ~3/2 = 702.210{{c}}, ~5/4 = 386.120{{c}}
: error map: {{val| -0.015 +0.241 -0.223 +0.066 -0.331 -0.079 -0.356 +0.296 +0.370 }}
* CWE: ~2 = 1200.000{{c}}, ~3/2 = 702.219{{c}}, ~5/4 = 386.122{{c}}
: error map: {{val| 0.000 +0.264 -0.192 +0.110 -0.284 -0.023 -0.297 +0.358 +0.431 }}
{{Optimal ET sequence|legend=0| 41, 53k, 94jk, 217jk, 229j, 270, 311, 581jk, 634, 904, 945, 1215jk }}
Badness (Sintel): 0.796
=== Septinoellismic ===
Subgroup: 2.3.5.7.11.13.17
Comma list: 1225/1224, 2080/2079, 2431/2430, 4096/4095
{{Mapping|legend=2| 1 0 0 25 -33 -13 47 | 0 1 0 -14 23 12 -30 | 0 0 1 0 0 -1 2 }}
Optimal tunings:
* WE: ~2 = 1199.9654{{c}}, ~3/2 = 702.2159{{c}}, ~5/4 = 386.2053{{c}}
: error map: {{val| -0.035 +0.226 -0.178 -0.229 -0.006 -0.038 +0.252 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2359{{c}}, ~5/4 = 386.2080{{c}}
: error map: {{val| 0.000 +0.281 -0.106 -0.129 +0.109 +0.096 +0.383 }}
{{Optimal ET sequence|legend=0| 53, 94, 176g, 217, 270, 311, 487, 581 }}
Badness (Sintel): 0.950
==== 19-limit ====
Subgroup: 2.3.5.7.11.13.17.19
Comma list: 1216/1215, 1225/1224, 1540/1539, 1729/1728, 2080/2079
{{Mapping|legend=2| 1 0 0 25 -33 -13 47 -6 | 0 1 0 -14 23 12 -30 5 | 0 0 1 0 0 -1 2 1 }}
Optimal tunings:
* WE: ~2 = 1199.9699{{c}}, ~3/2 = 702.2200{{c}}, ~5/4 = 386.2373{{c}}
: error map: {{val| -0.030 +0.235 -0.137 -0.238 +0.044 -0.034 +0.286 -0.206 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2374{{c}}, ~5/4 = 386.2384{{c}}
: error map: {{val| 0.000 +0.282 -0.075 -0.150 +0.143 +0.083 +0.399 -0.088 }}
{{Optimal ET sequence|legend=0| 53, 94, 176g, 217, 270, 311, 487, 581 }}
Badness (Sintel): 0.682
=== Septisperasmic ===
Subgroup: 2.3.5.7.11.13.17
Comma list: 2080/2079, 2500/2499, 4096/4095, 19712/19683
{{Mapping|legend=2| 1 0 0 25 -33 -13 -48 | 0 1 0 -14 23 12 27 | 0 0 1 0 0 -1 4 }}
Optimal tunings:
* WE: ~2 = 1199.9797{{c}}, ~3/2 = 702.2164{{c}}, ~5/4 = 386.2286{{c}}
: error map: {{val| -0.020 +0.241 -0.126 -0.080 -0.136 -0.098 +0.068 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2281{{c}}, ~5/4 = 386.2332{{c}}
: error map: {{val| 0.000 +0.273 -0.081 -0.020 -0.071 -0.023 +0.137 }}
{{Optimal ET sequence|legend=0| 258, 270, 311, 581, 1485, 1796, 2066, 2647b }}
Badness (Sintel): 1.76
==== 19-limit ====
Subgroup: 2.3.5.7.11.13.17.19
Comma list: 1216/1215, 1540/1539, 1729/1728, 2080/2079, 2500/2499
{{Mapping|legend=2| 1 0 0 25 -33 -13 -48 -6 | 0 1 0 -14 23 12 27 5 | 0 0 1 0 0 -1 4 1 }}
Optimal tunings:
* WE: ~2 = 1199.9861{{c}}, ~3/2 = 702.2198{{c}}, ~5/4 = 386.2353{{c}}
: error map: {{val| -0.014 +0.251 -0.106 -0.056 -0.123 -0.084 +0.101 -0.193 }}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 702.2278{{c}}, ~5/4 = 386.2383{{c}}
: error map: {{val| 0.000 +0.273 -0.075 -0.015 -0.078 -0.032 +0.148 -0.136 }}
{{Optimal ET sequence|legend=0| 258, 270, 311, 581, 1485, 1796, 2066 }}
Badness (Sintel): 1.10


== Androschismic ==
== Androschismic ==
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Comma list: 2080/2079, 10648/10647, 43904/43875
Comma list: 2080/2079, 10648/10647, 43904/43875


Mapping: {{mapping| 1 0 0 25 62 82 | 0 1 0 -14 -34 -43 | 0 0 1 0 -2 -3 }}
{{Mapping|legend=0| 1 0 0 25 62 82 | 0 1 0 -14 -34 -43 | 0 0 1 0 -2 -3 }}


Optimal tunings:  
Optimal tunings:  
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Comma list: 1216/1215, 2080/2079, 3136/3135, 10648/10647
Comma list: 1216/1215, 2080/2079, 3136/3135, 10648/10647


Mapping: {{mapping| 1 0 0 25 62 82 -6 | 0 1 0 -14 -34 -43 5 | 0 0 1 0 -2 -3 1 }}
{{Mapping|legend=0| 1 0 0 25 62 82 -6 | 0 1 0 -14 -34 -43 5 | 0 0 1 0 -2 -3 1 }}


Optimal tunings:  
Optimal tunings: