Metric microtemperaments: Difference between revisions
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{{Technical data page}} | {{Technical data page}} | ||
This is a collection of [[rank-2 temperament|rank-2]] '''metric microtemperaments''', which [[tempering out|temper out]] the [[meter]] ({{monzo|legend=1| -11 2 7 -3 }}, [[ratio]]: 703125/702464). | |||
Temperaments discussed elsewhere include: | Temperaments discussed elsewhere include: | ||
* [[Meantone]] (+81/80 | * [[Meantone]] (+81/80) → [[Meantone family #Septimal meantone|Meantone family]] | ||
* ''[[Term (temperament)|Term]]'' (+32805/32768) → [[Schismatic family #Term|Schismatic family]] | |||
* ''[[Undim]]'' (+5120/5103) → [[Undim family #Septimal undim|Undim family]] | |||
* ''[[Quintupole]]'' (+4000/3969) → [[Quintaleap family #Quintupole|Quintaleap family]] | |||
* ''[[Trinity]]'' (+1600000/1594323) → [[Amity family #Trinity|Amity family]] | |||
* ''[[Marfifths]]'' (+10976/10935) → [[Kleismic family #Marfifths|Kleismic family]] | |||
* ''[[Enneadecal]]'' (+4375/4374) → [[Ragismic microtemperaments #Enneadecal|Ragismic microtemperaments]] | |||
* ''[[Triwell]]'' (+1029/1024) → [[Semicomma family #Triwell|Semicomma family]] | * ''[[Triwell]]'' (+1029/1024) → [[Semicomma family #Triwell|Semicomma family]] | ||
* [[Tertiaseptal]] (+2401/2400) → [[Breedsmic temperaments #Tertiaseptal|Breedsmic temperaments]] | * [[Tertiaseptal]] (+2401/2400) → [[Breedsmic temperaments #Tertiaseptal|Breedsmic temperaments]] | ||
* ''[[Grendel]]'' (+6144/6125) → [[Porwell temperaments #Grendel|Porwell temperaments]] | * ''[[Grendel]]'' (+6144/6125) → [[Porwell temperaments #Grendel|Porwell temperaments]] | ||
* ''[[Qak]]'' (+420175/419904) → [[Wizmic microtemperaments #Qak|Wizmic microtemperaments]] | * ''[[Qak]]'' (+420175/419904) → [[Wizmic microtemperaments #Qak|Wizmic microtemperaments]] | ||
== | Considered below are geb, stockhausenic, decimetra, and luminal, in the order of increasing [[badness]]. | ||
== Geb == | |||
: ''For the 5-limit version, see [[Syntonic–chromatic equivalence continuum #Geb (5-limit)]].'' | |||
Geb tempers out the [[scheme comma]] as well as the [[euzenius comma]], and may be described as {{nowrap| 164d & 171 }} temperament. It was named by [[Xenllium]] in 2021 after the earth god of ancient Egyptian religion and the father of Osiris; the latter being the name of a temperament that tempers out the same 5-limit comma as the geb (→ [[Breedsmic temperaments #Osiris]]). | |||
[[Subgroup]]: 2.3.5.7 | |||
[[Comma list]]: 703125/702464, 14348907/14336000 | |||
{{Mapping|legend=1| 1 -3 -10 -29 | 0 16 43 111 }} | |||
: mapping generators: ~2, ~8000/6561 | |||
[[Optimal tuning]]s: | |||
* [[WE]]: ~2 = 1200.0532{{c}}, ~8000/6561 = 343.8779{{c}} | |||
: [[error map]]: {{val| +0.053 -0.067 -0.094 +0.084 }} | |||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~8000/6561 = 343.8634{{c}} | |||
: error map: {{val| 0.000 -0.141 -0.189 +0.009 }} | |||
{{Optimal ET sequence|legend=1| 7d, …, 164d, 171, 1190, 1361, 1532, 1703, 1874, 2045, 2216, 4603bc }} | |||
[[Badness]] (Sintel): 1.23 | |||
== Stockhausenic == | |||
Stockhausenic may be described as the {{nowrap| 140 & 183 }} temperament, and has a generator chain of ~16/15 (or ~15/8, shown below), relating it to [[25ed5]]. It was named by Xenllium in 2021 after {{w|Karlheinz Stockhausen}} for his experimental use of 25ed5. | |||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
[[Comma list]]: 703125/702464, | [[Comma list]]: 703125/702464, 4096000/4084101 | ||
{{Mapping|legend=1| 1 | {{Mapping|legend=1| 1 -22 25 40 | 0 26 -25 -41 }} | ||
: mapping generators: ~2, ~15/8 | |||
[[Optimal tuning]] | [[Optimal tuning]]s: | ||
* [[WE]]: ~2 = 1199.8908{{c}}, ~15/8 = 1088.4483{{c}} | |||
: [[error map]]: {{val| -0.109 +0.103 -0.250 +0.427 }} | |||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~15/8 = 1088.5477{{c}} | |||
: error map: {{val| 0.000 +0.284 -0.005 +0.720 }} | |||
{{Optimal ET sequence|legend=1| | {{Optimal ET sequence|legend=1| 43, 97, 140, 183, 323, 786, 1109d, 1432d }} | ||
[[Badness]]: | [[Badness]] (Sintel): 2.25 | ||
=== 11-limit === | === 11-limit === | ||
Subgroup: 2.3.5.7.11 | Subgroup: 2.3.5.7.11 | ||
Comma list: | Comma list: 1375/1372, 5632/5625, 35937/35840 | ||
Mapping: {{mapping| 1 | Mapping: {{mapping| 1 -22 25 40 47 | 0 26 -25 -41 -48 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~2 = 1199.9691{{c}}, ~15/8 = 1088.5116{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~15/8 = 1088.5398{{c}} | |||
{{Optimal ET sequence|legend= | {{Optimal ET sequence|legend=0| 43, 97e, 140, 183, 323, 506 }} | ||
Badness: | Badness (Sintel): 1.85 | ||
=== 13-limit === | === 13-limit === | ||
Subgroup: 2.3.5.7.11.13 | Subgroup: 2.3.5.7.11.13 | ||
Comma list: | Comma list: 676/675, 1001/1000, 1375/1372, 4096/4095 | ||
Mapping: {{mapping| 1 | Mapping: {{mapping| 1 -22 25 40 47 -9 | 0 26 -25 -41 -48 14 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~2 = 1200.0267{{c}}, ~15/8 = 1088.5666{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~15/8 = 1088.5423{{c}} | |||
{{Optimal ET sequence|legend= | {{Optimal ET sequence|legend=0| 43, 97e, 140, 183, 323 }} | ||
Badness: | Badness (Sintel): 1.24 | ||
=== 17-limit === | === 17-limit === | ||
Subgroup: 2.3.5.7.11.13.17 | Subgroup: 2.3.5.7.11.13.17 | ||
Comma list: | Comma list: 442/441, 561/560, 676/675, 715/714, 4096/4095 | ||
Mapping: {{mapping| 1 | Mapping: {{mapping| 1 -22 25 40 47 -9 44 | 0 26 -25 -41 -48 14 -44 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~2 = 1200.0454{{c}}, ~15/8 = 1088.5821{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~15/8 = 1088.5407{{c}} | |||
{{Optimal ET sequence|legend= | {{Optimal ET sequence|legend=0| 43, 97e, 140, 183, 323, 506 }} | ||
Badness: 0. | Badness (Sintel): 0.978 | ||
== Decimetra == | == Decimetra == | ||
Named by [[Xenllium]] in 2021, decimetra tempers out the [[procyon comma]] as well as the [[linus comma]], and may be described as {{nowrap| 140 & 190 }}. | |||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
| Line 77: | Line 112: | ||
{{Mapping|legend=1| 10 3 20 12 | 0 4 1 5 }} | {{Mapping|legend=1| 10 3 20 12 | 0 4 1 5 }} | ||
: mapping generators: ~15/14, ~5/4 | |||
[[Optimal tuning]] | [[Optimal tuning]]s: | ||
* [[WE]]: ~15/14 = 120.0204{{c}}, ~5/4 = 385.5608{{c}} | |||
: [[error map]]: {[val| +0.204 +0.349 -0.345 -0.777 }} | |||
* [[CWE]]: ~15/14 = 120.0000{{c}}, ~5/4 = 385.5321{{c}} | |||
: error map: {[val| 0.000 +0.173 -0.782 -1.166 }} | |||
{{Optimal ET sequence|legend=1| 50, 90, 140, 330, 470, 800cd }} | {{Optimal ET sequence|legend=1| 50, 90, 140, 330, 470, 800cd }} | ||
[[Badness]]: | [[Badness]] (Sintel): 3.08 | ||
=== 11-limit === | === 11-limit === | ||
| Line 91: | Line 131: | ||
Mapping: {{mapping| 10 3 20 12 41 | 0 4 1 5 -2 }} | Mapping: {{mapping| 10 3 20 12 41 | 0 4 1 5 -2 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~15/14 = 120.0379{{c}}, ~5/4 = 385.5181{{c}} | |||
* CWE: ~15/14 = 120.0000{{c}}, ~5/4 = 385.4329{{c}} | |||
{{Optimal ET sequence|legend=1| 50, 90, 140, 190, 330e, 520de }} | {{Optimal ET sequence|legend=1| 50, 90, 140, 190, 330e, 520de }} | ||
Badness: | Badness (Sintel): 1.88 | ||
=== 13-limit === | === 13-limit === | ||
| Line 104: | Line 146: | ||
Mapping: {{mapping| 10 3 20 12 41 37 | 0 4 1 5 -2 0 }} | Mapping: {{mapping| 10 3 20 12 41 37 | 0 4 1 5 -2 0 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~15/14 = 120.0324{{c}}, ~5/4 = 385.5231{{c}} | |||
* CWE: ~15/14 = 120.0000{{c}}, ~5/4 = 385.4445{{c}} | |||
{{Optimal ET sequence|legend=1| 50, 90, 140, 190, 330e }} | {{Optimal ET sequence|legend=1| 50, 90, 140, 190, 330e, 520de }} | ||
Badness: | Badness (Sintel): 1.21 | ||
=== 17-limit === | === 17-limit === | ||
| Line 117: | Line 161: | ||
Mapping: {{mapping| 10 3 20 12 41 37 28 | 0 4 1 5 -2 0 4 }} | Mapping: {{mapping| 10 3 20 12 41 37 28 | 0 4 1 5 -2 0 4 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~15/14 = 120.0380{{c}}, ~5/4 = 385.5574{{c}} | |||
* CWE: ~15/14 = 120.0000{{c}}, ~5/4 = 385.4670{{c}} | |||
{{Optimal ET sequence|legend=1| 50, 90, 140, 190g, 330eg }} | {{Optimal ET sequence|legend=1| 50, 90, 140, 190g, 330eg }} | ||
Badness: | Badness (Sintel): 1.12 | ||
== | == Luminal == | ||
Luminal may be described as the {{nowrap| 128 & 183 }} temperament. In the [[11-limit]] it extends via [[skadi]], the metric extension tempering out 3025/3024, the [[lehmerisma]], and joins with [[lux]] so that it also tempers out 131072/130977, the [[olympia]]. It was named by [[Flora Canou]] in 2021 following the naming of lux, whose name is the SI unit for illuminance, and lx⋅m<sup>2</sup> is lumen, the SI unit for luminous flux. | |||
[[Subgroup]]: 2.3.5.7 | [[Subgroup]]: 2.3.5.7 | ||
[[Comma list]]: 703125/702464, | [[Comma list]]: 703125/702464, 26843545600/26795786661 | ||
{{Mapping|legend=1| 1 | {{Mapping|legend=1| 1 0 5 8 | 0 29 -49 -95 }} | ||
: mapping generators: ~2, ~8505/8192 | |||
[[Optimal tuning]] | [[Optimal tuning]]s: | ||
* [[WE]]: ~2 = 1199.9728{{c}}, ~8505/8192 = 65.5868{{c}} | |||
: [[error map]]: {{val| -0.027 +0.062 -0.202 +0.212 }} | |||
* [[CWE]]: ~2 = 1200.0000{{c}}, ~8505/8192 = 65.5884{{c}} | |||
: error map: {{val| 0.000 +0.108 -0.145 +0.277 }} | |||
{{Optimal ET sequence|legend=1| | {{Optimal ET sequence|legend=1| 55d, 128, 183, 311, 494, 1299, 1793 }} | ||
[[Badness]]: | [[Badness]] (Sintel): 3.41 | ||
=== 11-limit === | === 11-limit === | ||
Subgroup: 2.3.5.7.11 | Subgroup: 2.3.5.7.11 | ||
Comma list: | Comma list: 3025/3024, 131072/130977, 703125/702464 | ||
Mapping: {{mapping| 1 | Mapping: {{mapping| 1 0 5 8 1 | 0 29 -49 -95 45 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~2 = 1199.9685{{c}}, ~80/77 = 65.5864{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~80/77 = 65.5882{{c}} | |||
{{Optimal ET sequence|legend= | {{Optimal ET sequence|legend=0| 55d, 128, 183, 311, 494, 1299, 1793, 2287d }} | ||
Badness: | Badness (Sintel): 1.08 | ||
=== 13-limit === | === 13-limit === | ||
Subgroup: 2.3.5.7.11.13 | Subgroup: 2.3.5.7.11.13 | ||
Comma list: | Comma list: 2080/2079, 3025/3024, 4096/4095, 31250/31213 | ||
Mapping: {{mapping| 1 | Mapping: {{mapping| 1 0 5 8 1 -1 | 0 29 -49 -95 45 86 }} | ||
Optimal | Optimal tunings: | ||
* WE: ~2 = 1199.9715{{c}}, ~27/26 = 65.5867{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~27/26 = 65.5883{{c}} | |||
{{Optimal ET sequence|legend= | {{Optimal ET sequence|legend=0| 128, 183, 311, 494, 1299, 1793 }} | ||
Badness: 0. | Badness (Sintel): 0.696 | ||
=== 17-limit === | === 17-limit === | ||
Subgroup: 2.3.5.7.11.13.17 | Subgroup: 2.3.5.7.11.13.17 | ||
Comma list: | Comma list: 1156/1155, 1275/1274, 2080/2079, 2431/2430, 4096/4095 | ||
Mapping: {{mapping| 1 | Mapping: {{mapping| 1 0 5 8 1 -1 6 | 0 29 -49 -95 45 86 -35 }} | ||
Optimal tunings: | |||
* WE: ~2 = 1199.9941{{c}}, ~27/26 = 65.5875{{c}} | |||
* CWE: ~2 = 1200.0000{{c}}, ~27/26 = 65.5878{{c}} | |||
{{Optimal ET sequence|legend= | {{Optimal ET sequence|legend=0| 128, 183, 311, 494 }} | ||
Badness (Sintel): 0.748 | |||
[[Category:Temperament collections]] | [[Category:Temperament collections]] | ||
[[Category:Metric microtemperaments| ]] <!-- main article --> | [[Category:Metric microtemperaments| ]] <!-- main article --> | ||
[[Category:Rank 2]] | [[Category:Rank 2]] | ||