Vulture family: Difference between revisions

Lériendil (talk | contribs)
m Units & misc. cleanup
Line 11: Line 11:


== Vulture ==
== Vulture ==
The generator of the vulture temperament is a grave fourth of [[320/243]], that is, a [[4/3|perfect fourth]] minus a [[81/80|syntonic comma]]. Four of these make a [[3/1|perfect twelfth]]. Its [[ploidacot]] is alpha-tetracot. It is a member of the [[syntonic–diatonic equivalence continuum]] with {{nowrap|''n'' {{=}} 4}}, so it equates a [[256/243|Pythagorean limma]] with a stack of four syntonic commas. It is also in the [[schismic–Mercator equivalence continuum]] with {{nowrap|''n'' {{=}} 4}}, so unless [[53edo]] is used as a tuning, the [[schisma]] is always observed.  
The generator of the vulture temperament is a grave fourth of [[320/243]], that is, a [[4/3|perfect fourth]] minus a [[81/80|syntonic comma]]. Four of these make a [[3/1|perfect twelfth]]. Its [[ploidacot]] is alpha-tetracot. It is a member of the [[syntonic–diatonic equivalence continuum]] with {{nowrap| ''n'' {{=}} 4 }}, so it equates a [[256/243|Pythagorean limma]] with a stack of four syntonic commas. It is also in the [[schismic–Mercator equivalence continuum]] with {{nowrap|''n'' {{=}} 4}}, so unless [[53edo]] is used as a tuning, the [[schisma]] is always observed.  


[[Subgroup]]: 2.3.5
[[Subgroup]]: 2.3.5
Line 22: Line 22:


[[Optimal tuning]]s:  
[[Optimal tuning]]s:  
* [[CTE]]: ~2 = 1200.000, ~320/243 = 475.5351
* [[CTE]]: ~2 = 1200.0000{{c}}, ~320/243 = 475.5351{{c}}
: [[error map]]: {{val| 0.0000 +0.1855 -0.0758 }}
: [[error map]]: {{val| 0.0000 +0.1855 -0.0758 }}
* [[POTE]]: ~2 = 1200.000, ~320/243 = 475.5426
* [[POTE]]: ~2 = 1200.0000{{c}}, ~320/243 = 475.5426{{c}}
: error map: {{val| 0.0000 +0.2154 +0.0811 }}
: error map: {{val| 0.0000 +0.2154 +0.0811 }}


Line 31: Line 31:
[[Badness]]:  
[[Badness]]:  
* Smith: 0.041431
* Smith: 0.041431
* Dirichlet: 0.972
* Sintel: 0.972


== Septimal vulture ==
== Septimal vulture ==
Line 45: Line 45:


[[Optimal tuning]]s:  
[[Optimal tuning]]s:  
* [[CTE]]: ~2 = 1200.0000, ~320/243 = 475.5528
* [[CTE]]: ~2 = 1200.0000{{c}}, ~320/243 = 475.5528{{c}}
: [[error map]]: {{val| 0.0000 +0.2561 +0.2945 +0.2188 }}
: [[error map]]: {{val| 0.0000 +0.2561 +0.2945 +0.2188 }}
* [[POTE]]: ~2 = 1200.0000, ~320/243 = 475.5511
* [[POTE]]: ~2 = 1200.0000{{c}}, ~320/243 = 475.5511{{c}}
: error map: {{val| 0.0000 +0.2495 +0.2601 +0.3106 }}
: error map: {{val| 0.0000 +0.2495 +0.2601 +0.3106 }}


Line 62: Line 62:


Optimal tunings:  
Optimal tunings:  
* CTE: ~2 = 1200.0000, ~320/243 = 475.5558
* CTE: ~2 = 1200.0000{{c}}, ~320/243 = 475.5558{{c}}
* POTE: ~2 = 1200.0000, ~320/243 = 475.5567
* POTE: ~2 = 1200.0000{{c}}, ~320/243 = 475.5567{{c}}


{{Optimal ET sequence|legend=0| 53, 217, 270, 2107c, 2377bc }}
{{Optimal ET sequence|legend=0| 53, 217, 270, 2107c, 2377bc }}
Line 77: Line 77:


Optimal tunings:  
Optimal tunings:  
* CTE: ~2 = 1200.0000, ~320/243 = 475.5566
* CTE: ~2 = 1200.0000{{c}}, ~320/243 = 475.5566{{c}}
* POTE: ~2 = 1200.0000, ~320/243 = 475.5572
* POTE: ~2 = 1200.0000{{c}}, ~320/243 = 475.5572{{c}}


{{Optimal ET sequence|legend=0| 53, 217, 270 }}
{{Optimal ET sequence|legend=0| 53, 217, 270 }}
Line 92: Line 92:


Optimal tunings:  
Optimal tunings:  
* CTE: ~2 = 1200.0000, ~25/19 = 475.5561
* CTE: ~2 = 1200.0000{{c}}, ~25/19 = 475.5561{{c}}
* CWE: ~2 = 1200.0000, , ~25/19 = 475.5569
* CWE: ~2 = 1200.0000{{c}}, ~25/19 = 475.5569{{c}}


{{Optimal ET sequence|legend=0| 53, 217, 270 }}
{{Optimal ET sequence|legend=0| 53, 217, 270 }}
Line 105: Line 105:


Mapping: {{mapping| 2 0 -12 50 41 | 0 4 21 -56 -43 }}
Mapping: {{mapping| 2 0 -12 50 41 | 0 4 21 -56 -43 }}
: mapping generators: ~99/70, ~320/243
: mapping generators: ~99/70, ~320/243


Optimal tunings:  
Optimal tunings:  
* CTE: ~99/70 = 600.0000, ~320/243 = 475.5523
* CTE: ~99/70 = 600.0000{{c}}, ~320/243 = 475.5523{{c}}
* POTE: ~99/70 = 600.0000, ~320/243 = 475.5496
* POTE: ~99/70 = 600.0000{{c}}, ~320/243 = 475.5496{{c}}


{{Optimal ET sequence|legend=0| 106, 164, 270, 916, 1186, 1456 }}
{{Optimal ET sequence|legend=0| 106, 164, 270, 916, 1186, 1456 }}
Line 124: Line 123:


Optimal tunings:  
Optimal tunings:  
* CTE: ~99/70 = 600.0000, ~320/243 = 475.5540
* CTE: ~99/70 = 600.0000{{c}}, ~320/243 = 475.5540{{c}}
* POTE: ~99/70 = 600.0000, ~320/243 = 475.553
* POTE: ~99/70 = 600.0000{{c}}, ~320/243 = 475.553{{c}}


{{Optimal ET sequence|legend=0| 106, 164, 270 }}
{{Optimal ET sequence|legend=0| 106, 164, 270 }}
Line 138: Line 137:
{{Mapping|legend=1| 1 8 36 29 | 0 -12 -63 -49 }}
{{Mapping|legend=1| 1 8 36 29 | 0 -12 -63 -49 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~81/56 = 641.4791
[[Optimal tuning]] ([[POTE]]): ~2 = 1200.0000{{c}}, ~81/56 = 641.4791{{c}}


{{Optimal ET sequence|legend=1| 58, 159, 217 }}
{{Optimal ET sequence|legend=1| 58, 159, 217 }}


[[Badness]]: 0.154715
[[Badness]] (Smith): 0.154715


=== 11-limit ===
=== 11-limit ===
Line 151: Line 150:
Mapping: {{mapping| 1 8 36 29 35 | 0 -12 -63 -49 -59 }}
Mapping: {{mapping| 1 8 36 29 35 | 0 -12 -63 -49 -59 }}


Optimal tuning (POTE): ~2 = 1\1, 81/56 = 641.4822
Optimal tuning (POTE): ~2 = 1200.0000{{c}}, 81/56 = 641.4822{{c}}


{{Optimal ET sequence|legend=1| 58, 101cd, 159, 217 }}
{{Optimal ET sequence|legend=0| 58, 101cd, 159, 217 }}


Badness: 0.048401
Badness (Smith): 0.048401


=== 13-limit ===
=== 13-limit ===
Line 164: Line 163:
Mapping: {{mapping| 1 8 36 29 35 47 | 0 -12 -63 -49 -59 -81 }}
Mapping: {{mapping| 1 8 36 29 35 47 | 0 -12 -63 -49 -59 -81 }}


Optimal tuning (POTE): ~2 = 1\1, ~81/56 = 641.4797
Optimal tuning (POTE): ~2 = 1200.0000{{c}}, ~81/56 = 641.4797{{c}}


{{Optimal ET sequence|legend=1| 58, 159, 217 }}
{{Optimal ET sequence|legend=0| 58, 159, 217 }}


Badness: 0.025469
Badness (Smith): 0.025469


=== 17-limit ===
=== 17-limit ===
Line 177: Line 176:
Mapping: {{mapping| 1 8 36 29 35 47 -5 | 0 -12 -63 -49 -59 -81 17 }}
Mapping: {{mapping| 1 8 36 29 35 47 -5 | 0 -12 -63 -49 -59 -81 17 }}


Optimal tuning (POTE): ~2 = 1\1, ~81/56 = 641.4794
Optimal tuning (POTE): ~2 = 1200.0000{{c}}, ~81/56 = 641.4794{{c}}


{{Optimal ET sequence|legend=1| 58, 159, 217 }}
{{Optimal ET sequence|legend=0| 58, 159, 217 }}


Badness: 0.021984
Badness (Smith): 0.021984


== Eagle ==
== Eagle ==
Line 192: Line 191:
: mapping generators: ~177147/125440, ~28/27
: mapping generators: ~177147/125440, ~28/27


[[Optimal tuning]] ([[POTE]]): ~177147/125440 = 1\2, ~28/27 = 62.229
[[Optimal tuning]] ([[POTE]]): ~177147/125440 = 600.000{{c}}, ~28/27 = 62.229{{c}}


{{Optimal ET sequence|legend=1| 58, 154c, 212, 270, 752, 1022, 1292, 2854b }}
{{Optimal ET sequence|legend=1| 58, 154c, 212, 270, 752, 1022, 1292, 2854b }}


[[Badness]]: 0.059498
[[Badness]] (Smith): 0.059498


=== 11-limit ===
=== 11-limit ===
Line 205: Line 204:
Mapping: {{mapping| 2 4 9 8 12 | 0 -8 -42 -23 -49 }}
Mapping: {{mapping| 2 4 9 8 12 | 0 -8 -42 -23 -49 }}


Optimal tuning (POTE): ~99/70 = 1\2, ~28/27 = 62.224
Optimal tuning (POTE): ~99/70 = 600.000{{c}}, ~28/27 = 62.224{{c}}


{{Optimal ET sequence|legend=1| 58, 154ce, 212, 270 }}
{{Optimal ET sequence|legend=0| 58, 154ce, 212, 270 }}


Badness: 0.024885
Badness (Smith): 0.024885


=== 13-limit ===
=== 13-limit ===
Line 218: Line 217:
Mapping: {{mapping| 2 4 9 8 12 13 | 0 -8 -42 -23 -49 -54 }}
Mapping: {{mapping| 2 4 9 8 12 13 | 0 -8 -42 -23 -49 -54 }}


Optimal tuning (POTE): ~99/70 = 1\2, ~28/27 = 62.220
Optimal tuning (POTE): ~99/70 = 600.000{{c}}, ~28/27 = 62.220{{c}}


{{Optimal ET sequence|legend=1| 58, 154cef, 212, 270 }}
{{Optimal ET sequence|legend=0| 58, 154cef, 212, 270 }}


Badness: 0.016282
Badness (Smith): 0.016282


== Turkey ==
== Turkey ==
Line 231: Line 230:
{{Mapping|legend=1| 1 8 36 0 | 0 -16 -84 7 }}
{{Mapping|legend=1| 1 8 36 0 | 0 -16 -84 7 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~1715/1296 = 481.120
[[Optimal tuning]] ([[POTE]]): ~2 = 1200.000{{c}}, ~1715/1296 = 481.120{{c}}


{{Optimal ET sequence|legend=1| 5, 207c, 212, 429 }}
{{Optimal ET sequence|legend=1| 5, 207c, 212, 429 }}


[[Badness]]: 0.210964
[[Badness]] (Smith): 0.210964


=== 11-limit ===
=== 11-limit ===
Line 244: Line 243:
Mapping: {{mapping| 1 8 36 0 64 | 0 -16 -84 7 -151 }}
Mapping: {{mapping| 1 8 36 0 64 | 0 -16 -84 7 -151 }}


Optimal tuning (POTE): ~2 = 1\1, ~33/25 = 481.120
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~33/25 = 481.120{{c}}


{{Optimal ET sequence|legend=1| 212, 429 }}
{{Optimal ET sequence|legend=0| 212, 429 }}


Badness: 0.079694
Badness (Smith): 0.079694


=== 13-limit ===
=== 13-limit ===
Line 257: Line 256:
Mapping: {{mapping| 1 8 36 0 64 47 | 0 -16 -84 7 -151 -108 }}
Mapping: {{mapping| 1 8 36 0 64 47 | 0 -16 -84 7 -151 -108 }}


Optimal tuning (POTE): ~2 = 1\1, ~33/25 = 481.118
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~33/25 = 481.118{{c}}


{{Optimal ET sequence|legend=1| 212, 217, 429 }}
{{Optimal ET sequence|legend=0| 212, 217, 429 }}


Badness: 0.043787
Badness (Smith): 0.043787


[[Category:Temperament families]]
[[Category:Temperament families]]