Lehmerismic temperaments: Difference between revisions

m +categories
m Cleanup
Line 1: Line 1:
__FORCETOC__
__FORCETOC__
These are rank three temperaments tempering out [[3025/3024]], but we can begin by looking at the rank four temperament.
These are rank-3 temperaments tempering out [[3025/3024]], but we can begin by looking at the rank-4 temperament.


Comma: 3025/3024
= Lehmerismic =
Subgroup: 2.3.5.7.11


Map: [<1 0 0 0 2|, <0 1 0 1 2|, <0 0 1 0 -1|, <0 0 0 2 1|]
[[Comma list]]: 3025/3024


Generators: 2, 3, 5, 55/36
[[Mapping]]: [{{val| 1 0 0 0 2 }}, {{val| 0 1 0 1 2 }}, {{val| 0 0 1 0 -1 }}, {{val| 0 0 0 2 1 }}]


EDOs: 5, 10, 15, 26, 31, 41, 72, 118, 224, 270, 342, 612, 836, 1106, 1448, 2554
Mapping generators: ~2, ~3, ~5, ~55/36
 
{{Val list|legend=1| 5, 10, 15, 26, 31, 41, 72, 118, 224, 270, 342, 612, 836, 1106, 1448, 2554 }}


= Tyr =
= Tyr =
{{see also| Landscape family }}
{{see also| Landscape family }}


Commas: 3025/3024, 102487/102400
Subgroup: 2.3.5.7.11


Map: [<3 0 0 4 8|, <0 2 0 -4 1|, <0 0 1 2 0|]
[[Comma list]]: 3025/3024, 102487/102400


Generators: 63/50, 400/231, 5
[[Mapping]]: [{{val| 3 0 0 4 8 }}, {{val| 0 2 0 -4 1 }}, {{val| 0 0 1 2 0 }}]


EDOs: 15, 57, 72, 159, 183, 198, 255, 270, 342, 612, 954, 1566
Mapping generators: ~63/50, ~400/231, ~5


Badness: 0.000259
{{Val list|legend=1| 15, 57, 72, 159, 183, 198, 255, 270, 342, 612, 954, 1566 }}
 
[[Badness]]: 0.259 × 10<sup>-3</sup>


= Skadi =
= Skadi =
Commas: 3025/3024, 703125/702464


Map: [&lt;1 0 5 8 1|, &lt;0 1 1 3 2|, &lt;0 0 -6 -14 -1|]
Subgroup: 2.3.5.7.11


Generators: 2, 3, 18/11
[[Comma list]]: 3025/3024, 703125/702464


EDOs: 31, 97, 121, 152, 311, 342, 836, 1178, 2014
[[Mapping]]: [{{val| 1 0 5 8 1 }}, {{val| 0 1 1 3 2 }}, {{val| 0 0 -6 -14 -1 }}]


Badness: 0.000349
Mapping generators: ~2, ~3, ~18/11
 
{{Val list|legend=1| 31, 97, 121, 152, 311, 342, 836, 1178, 2014 }}
 
[[Badness]]: 0.349 × 10<sup>-3</sup>


= Ganesha =
= Ganesha =
Commas: 3025/3024, 5632/5625


Map: [&lt;1 0 0 -22 -9|, &lt;0 1 0 1 2|, &lt;0 0 1 10 4|]
Subgroup: 2.3.5.7.11
 
[[Comma list]]: 3025/3024, 5632/5625
 
[[Mapping]]: [{{val| 1 0 0 -22 -9 }}, {{val| 0 1 0 1 2 }}, {{val| 0 0 1 10 4 }}]


Generators: 2, 3, 5
Mapping generators: ~2, ~3, ~5


EDOs: 31, 87, 118, 152, 239, 270, 962, 1232, 1502
{{Val list|legend=1| 31, 87, 118, 152, 239, 270, 962, 1232, 1502 }}


Badness: 0.000390
[[Badness]]: 0.390 × 10<sup>-3</sup>


= Hanuman =
= Hanuman =
Commas: 3025/3024, 4000/3993


Map: [&lt;1 2 0 -8 1|, &lt;0 -3 0 11 1|, &lt;0 0 1 4 1|]
Subgroup: 2.3.5.7.11


Generators: 2, 11/10, 5
[[Comma list]]: 3025/3024, 4000/3993


EDOs: 15, 57, 72, 152, 224, 311, 463, 535, 998, 1533ce, 2307ce, 2531cde, 2842bce
[[Mapping]]: [{{val| 1 2 0 -8 1 }}, {{val| 0 -3 0 11 1 }}, {{val| 0 0 1 4 1 }}]


Badness: 0.000500
Mapping generators: ~2, ~11/10, ~5
 
{{Val list|legend=1| 15, 57, 72, 152, 224, 311, 463, 535, 998, 1533ce, 2307ce, 2531cde, 2842bce }}
 
[[Badness]]: 0.500 × 10<sup>-3</sup>


== 13-limit ==
== 13-limit ==
Commas: 625/624, 1575/1573, 2080/2079


Map: [&lt;1 2 0 -8 1 -6|, &lt;0 -3 0 11 1 3|, &lt;0 0 1 4 1 4|]
Subgroup: 2.3.5.7.11.13
 
Comma list: 625/624, 1575/1573, 2080/2079
 
Mapping: [{{val| 1 2 0 -8 1 -6 }}, {{val| 0 -3 0 11 1 3 }}, {{val| 0 0 1 4 1 4 }}]


Generators: 2, 11/10, 5
Mapping generators: ~2, ~11/10, ~5


EDOs: 15, 72, 87, 137, 159, 224, 311, 535, 918c, 1142c, 1453c
Vals: {{Val list| 15, 72, 87, 137, 159, 224, 311, 535, 918c, 1142c, 1453c }}


Badness: 0.000653
Badness: 0.653 × 10<sup>-3</sup>


[[Category:Theory]]
[[Category:Regular temperament theory]]
[[Category:Temperament]]
[[Category:Temperament]]
[[Category:Lehmerismic]]
[[Category:Lehmerismic]]
[[Category:Rank 3]]
[[Category:Rank 3]]