Starling family: Difference between revisions

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Line 25: Line 25:
: Eigenmonzos: 2, 8/7, 4/3
: Eigenmonzos: 2, 8/7, 4/3


{{Val list|legend=1| 12, 15, 16, 19, 27, 31, 34, 43, 46, 50, 58, 65, 77, 108, 166c, 185, 243c }}
{{Val list|legend=1| 7d, 8d, 12, 19, 27, 31, 46, 58, 77, 135c, 166c }}


[[Badness]]: 0.0699 × 10<sup>-3</sup>
[[Badness]]: 0.0699 × 10<sup>-3</sup>
Line 65: Line 65:
Mapping generators: ~2, ~3, ~5
Mapping generators: ~2, ~3, ~5


{{Val list|legend=1| 15, 19, 27, 31, 46, 77, 96d, 127d, 173d, 204de, 300de }}
{{Val list|legend=1| 12e, 15, 19, 27, 31, 46, 77, 96d, 127d, 173d, 204de }}


[[Badness]]: 0.677 × 10<sup>-3</sup>
[[Badness]]: 0.677 × 10<sup>-3</sup>
Line 89: Line 89:
: [[Eigenmonzo]]s: 2, 7/6, 4/3
: [[Eigenmonzo]]s: 2, 7/6, 4/3


{{Val list|legend=1| 12, 15, 31, 46, 58, 89, 135c, 224c }}
{{Val list|legend=1| 12, 15, 19e, 27e, 31, 46, 58, 89, 135c, 193c, 224c }}


[[Badness]]: 0.353 × 10<sup>-3</sup>
[[Badness]]: 0.353 × 10<sup>-3</sup>
Line 106: Line 106:
Mapping: [{{val| 1 0 0 -1 -5 0 }}, {{val| 0 1 0 -2 -2 -5 }}, {{val| 0 0 1 3 5 5 }}]
Mapping: [{{val| 1 0 0 -1 -5 0 }}, {{val| 0 1 0 -2 -2 -5 }}, {{val| 0 0 1 3 5 5 }}]


Vals: {{Val list| 31, 46, 58, 89f, 104c, 135c, 193cf, 239cf, 328cf }}
Vals: {{Val list| 12f, 19e, 27e, 31, 46, 58, 104c, 135c, 193cf }}


Badness: 0.677 × 10<sup>-3</sup>
Badness: 0.677 × 10<sup>-3</sup>
Line 113: Line 113:
Subgroup: 2.3.5.7.11.13
Subgroup: 2.3.5.7.11.13


Comma list: 126/125, 176/175, 144/143
Comma list: 126/125, 144/143, 176/175


Mapping: [{{val| 1 0 0 -1 -5 9 }}, {{val| 0 1 0 -2 -2 4 }}, {{val| 0 0 1 3 5 -5 }}]
Mapping: [{{val| 1 0 0 -1 -5 9 }}, {{val| 0 1 0 -2 -2 4 }}, {{val| 0 0 1 3 5 -5 }}]


Vals: {{Val list| 12, 15, 31, 43, 48c, 58, 147cf, 205cef }}
Vals: {{Val list| 12, 15, 27e, 31, 43, 58, 147cf, 205cceff, 263ccdeefff }}


Badness: 0.915 × 10<sup>-3</sup>
Badness: 0.915 × 10<sup>-3</sup>
Line 126: Line 126:
Subgroup: 2.3.5.7.11.13
Subgroup: 2.3.5.7.11.13


Comma list: 126/125, 176/175, 66/65
Comma list: 66/65, 126/125, 176/175


Mapping: [{{val| 1 0 0 -1 -5 -4 }}, {{val| 0 1 0 -2 -2 -1 }}, {{val| 0 0 1 3 5 4 }}]
Mapping: [{{val| 1 0 0 -1 -5 -4 }}, {{val| 0 1 0 -2 -2 -1 }}, {{val| 0 0 1 3 5 4 }}]


Vals: {{Val list| 15, 19f, 21e, 22f, 28, 31, 46, 58, 89, 108ef }}
Vals: {{Val list| 12f, 15, 19e, 27eff, 31 }}


Badness: 0.837 × 10<sup>-3</sup>
Badness: 0.837 × 10<sup>-3</sup>
Line 141: Line 141:
Mapping: [{{val| 1 0 0 -1 -5 2 }}, {{val| 0 1 0 -2 -2 4 }}, {{val| 0 0 1 3 5 -2 }}]
Mapping: [{{val| 1 0 0 -1 -5 2 }}, {{val| 0 1 0 -2 -2 4 }}, {{val| 0 0 1 3 5 -2 }}]


Vals: {{Val list| 12, 15, 46 }}
Vals: {{Val list| 12, 15, 19e, 27e, 31f, 46 }}


Badness: 0.991 × 10<sup>-3</sup>
Badness: 0.991 × 10<sup>-3</sup>
Line 165: Line 165:
: [[Eigenmonzo]]s: 2, 8/7, 11/9
: [[Eigenmonzo]]s: 2, 8/7, 11/9


{{Val list|legend=1| 12, 15, 19, 27e, 34, 46e, 58e, 61e, 73e }}
{{Val list|legend=1| 7d, 8d, 12, 15, 19, 27e }} <nowiki>*</nowiki>
 
<nowiki>*</nowiki> [[optimal patent val]]: [[34edo|34]]


[[Badness]]: 0.480 × 10<sup>-3</sup>
[[Badness]]: 0.480 × 10<sup>-3</sup>
Line 172: Line 174:
Subgroup: 2.3.5.7.11.13
Subgroup: 2.3.5.7.11.13


Comma list: 126/125, 100/99, 91/90
Comma list: 91/90, 100/99, 126/125


Mapping: [{{val| 1 0 0 -1 2 2 }}, {{val| 0 1 0 -2 -2 4 }}, {{val| 0 0 1 3 2 -2 }}]
Mapping: [{{val| 1 0 0 -1 2 2 }}, {{val| 0 1 0 -2 -2 4 }}, {{val| 0 0 1 3 2 -2 }}]


Vals: {{Val list| 12, 15, 18, 25e, 27e, 34, 46e, 51ce, 61e }}
Vals: {{Val list| 7d, 8d, 12, 15, 19, 27e, 69bceef }} <nowiki>*</nowiki>
 
<nowiki>*</nowiki> optimal patent val: [[34edo|34]]


Badness: 0.876 × 10<sup>-3</sup>
Badness: 0.876 × 10<sup>-3</sup>
Line 187: Line 191:
Mapping: [{{val| 1 0 0 -1 2 3 }}, {{val| 0 1 0 -2 -2 -1 }}, {{val| 0 0 1 3 2 1 }}]
Mapping: [{{val| 1 0 0 -1 2 3 }}, {{val| 0 1 0 -2 -2 -1 }}, {{val| 0 0 1 3 2 1 }}]


Vals: {{Val list| 12f, 15, 27ef }}
Vals: {{Val list| 7d, 8d, 12f, 15, 27eff }}


Badness: 0.859 × 10<sup>-3</sup>
Badness: 0.859 × 10<sup>-3</sup>
Line 198: Line 202:
Mapping: [{{val| 1 0 0 -1 2 0 }}, {{val| 0 1 0 -2 -2 -5 }}, {{val| 0 0 1 3 2 5 }}]
Mapping: [{{val| 1 0 0 -1 2 0 }}, {{val| 0 1 0 -2 -2 -5 }}, {{val| 0 0 1 3 2 5 }}]


Vals: {{Val list| 12, 15, 17c, 19, 22ef], 27e, 34, 58e }}
Vals: {{Val list| 7df, 8d, 12f, 19, 27e, 66cdeeef }}


Badness: 0.905 × 10<sup>-3</sup>
Badness: 0.905 × 10<sup>-3</sup>
Line 209: Line 213:
[[Mapping]]: [{{val| 1 0 0 -1 4 }}, {{val| 0 1 0 -2 7 }}, {{val| 0 0 1 3 -5 }}]
[[Mapping]]: [{{val| 1 0 0 -1 4 }}, {{val| 0 1 0 -2 7 }}, {{val| 0 0 1 3 -5 }}]


{{Val list|legend=1| 19, 31, 58, 67, 89, 197c, 286ce, 375ce }}
{{Val list|legend=1| 12e, 19, 27e, 31, 58, 89, 197c, 228c }}


[[Badness]]: 0.648 × 10<sup>-3</sup>
[[Badness]]: 0.648 × 10<sup>-3</sup>
Line 220: Line 224:
Mapping: [{{val| 1 0 0 -1 4 0 }}, {{val| 0 1 0 -2 7 -5 }}, {{val| 0 0 1 3 -5 5 }}]
Mapping: [{{val| 1 0 0 -1 4 0 }}, {{val| 0 1 0 -2 7 -5 }}, {{val| 0 0 1 3 -5 5 }}]


Vals: {{Val list| 19, 31, 41, 43, 50, 58, 89f, 125ce, 135ce, 147cf, 166cef, 224cef }}
Vals: {{Val list| 8d, 19, 27e, 31, 50, 58, 166cef, 224ceeff }}


Badness: 0.821 × 10<sup>-3</sup>
Badness: 0.821 × 10<sup>-3</sup>
Line 231: Line 235:
[[Mapping]]: [{{val| 1 0 1 2 2 }}, {{val| 0 1 1 1 1 }}, {{val| 0 0 -2 -6 -1 }}]
[[Mapping]]: [{{val| 1 0 1 2 2 }}, {{val| 0 1 1 1 1 }}, {{val| 0 0 -2 -6 -1 }}]


{{Val list|legend=1| 8d, 15, 31, 46, 77, 185e, 262cde }}
{{Val list|legend=1| 7d, 8d, 15, 23de, 24d, 31, 46, 77 }}


[[Badness]]: 0.699 × 10<sup>-3</sup>
[[Badness]]: 0.699 × 10<sup>-3</sup>
Line 242: Line 246:
Mapping: [{{val| 1 0 1 2 2 2 }}, {{val| 0 1 1 1 1 1 }}, {{val| 0 0 -2 -6 -1 -1 }}]
Mapping: [{{val| 1 0 1 2 2 2 }}, {{val| 0 1 1 1 1 1 }}, {{val| 0 0 -2 -6 -1 -1 }}]


Vals: {{Val list| 15, 31, 46f, 70f, 101f }}
Vals: {{Val list| 7d, 8d, 15, 23de, 24d, 31 }}


Badness: 1.093 × 10<sup>-3</sup>
Badness: 1.093 × 10<sup>-3</sup>
Line 253: Line 257:
[[Mapping]]: [{{val| 1 0 0 -1 -3 }}, {{val| 0 1 0 -2 7 }}, {{val| 0 0 1 3 -2 }}]
[[Mapping]]: [{{val| 1 0 0 -1 -3 }}, {{val| 0 1 0 -2 7 }}, {{val| 0 0 1 3 -2 }}]


{{Val list|legend=1| 34, 46, 119c, 165c }}
{{Val list|legend=1| 7d, 12e, 19e, 27e, 39d, 46, 119c }}


[[Badness]]: 1.585 × 10<sup>-3</sup>
[[Badness]]: 1.585 × 10<sup>-3</sup>
Line 264: Line 268:
Mapping: [{{val| 1 0 0 -1 -3 2 }}, {{val| 0 1 0 -2 7 4 }}, {{val| 0 0 1 3 -2 -2 }}]
Mapping: [{{val| 1 0 0 -1 -3 2 }}, {{val| 0 1 0 -2 7 4 }}, {{val| 0 0 1 3 -2 -2 }}]


Vals: {{Val list| 34, 46, 172cd, 218cdf, 264bcdf, 310bcdf }}
Vals: {{Val list| 7d, 12e, 19e, 27e, 46 }}


Badness: 1.588 × 10<sup>-3</sup>
Badness: 1.588 × 10<sup>-3</sup>
Line 275: Line 279:
[[Mapping]]: [{{val| 1 1 0 -3 2 }}, {{val| 0 2 0 -4 5 }}, {{val| 0 0 1 3 0 }}]
[[Mapping]]: [{{val| 1 1 0 -3 2 }}, {{val| 0 2 0 -4 5 }}, {{val| 0 0 1 3 0 }}]


{{Val list|legend=1| 31, 34, 58, 65, 89, 154, 185, 216 }}
{{Val list|legend=1| 24d, 27e, 31, 58, 89, 154, 185 }}


[[Badness]]: 0.933 × 10<sup>-3</sup>
[[Badness]]: 0.933 × 10<sup>-3</sup>
Line 286: Line 290:
Mapping: [{{val| 1 1 0 -3 2 -5 }}, {{val| 0 2 0 -4 5 -10 }}, {{val| 0 0 1 3 0 5 }}]
Mapping: [{{val| 1 1 0 -3 2 -5 }}, {{val| 0 2 0 -4 5 -10 }}, {{val| 0 0 1 3 0 5 }}]


Vals: {{Val list| 31, 58, 65f, 89f, 92e, 154, 185, 216f }}
Vals: {{Val list| 27e, 31, 58, 96d, 154 }}


[[Category:Regular temperament theory]]
[[Category:Regular temperament theory]]

Revision as of 10:08, 8 June 2021

The head of the starling family is starling, which tempers out 126/125, the starling comma or septimal semicomma. Starling has a normal list basis of [2, 3, 5]; hence a 5-limit scale can be converted to starling simply by tempering it. One way to do that, and an excellent starling tuning, is given by 77edo. Other possible tunings are 108edo and 185edo, and the nonpatent 135edo val ⟨135 214 314 379].

In starling, (6/5)3 = 126/125 × 12/7, and minor thirds/major sixths are low complexity intervals. A suitable 5-limit scale to temper via starling will be one where there are chains of minor thirds. Starling has a 6/5-6/5-6/5-7/6 versions of the diminished seventh chord which is very characteristic of it. Since this is a chord of meantone temperament in wide use in Western common practice harmony long before 12edo established itself as the standard tuning, it is arguably more authentic to tune it as three stacked minor thirds and an augmented second, which is what it is in meantone, than as the modern version of four stacked very flat minor thirds.

Because no appreciable tuning accuracy is lost by including 1029/1024 along with 126/125 in the comma list, which leads to valentine temperament, there is a close relationship between the two. Even if tempering a 5-limit scale, one can assume valentine tempering.

Starling

Subgroup: 2.3.5.7

Comma list: 126/125

Mapping: [⟨1 0 0 -5], ⟨0 1 0 2], ⟨0 0 1 2]]

Mapping generators: ~2, ~3, ~5

Map to lattice: [⟨0 1 0 -2], ⟨0 1 1 1]]

Minkowski lattice basis:

6/5 length = 1.068, 5/4 length = 1.206
Angle (6/5, 5/4) = 100.364 degrees

Minimax tuning:

[⟨1 0 0 0], ⟨0 1 0 0], ⟨1/3 2/3 0 1/3], ⟨0 0 0 1]]
Eigenmonzos: 2, 8/7, 4/3

Template:Val list

Badness: 0.0699 × 10-3

Projection pair: 7 125/18

Scales: starling7, starling8, starling9, starling11, starling12, starling15, starling16, starling17, starling19

Music
  • 7: 25/24, 81/80
  • 8: 16/15, 648/625
  • 9: 27/25, 128/125
  • 11: 16/15, 15625/15552
  • 12: 128/125, 628/625
  • 15: 128/125, 250/243
  • 16: 648/625, 3125/3072
  • 17: 25/24, 20480/19683
  • 19: 81/80, 3125/3072
  • 27: 128/125, 78732/78125
  • 28: 648/625, 16875/16384
  • 31: 81/80, 1990656/1953125
  • 34: 15625/15552, 2048/2025

Undecimal starling

Subgroup: 2.3.5.7.11

Comma list: 126/125, 385/384

Mapping: [⟨1 0 0 -1 8], ⟨0 1 0 -2 3], {{val| 0 0 1 3 -4]]

Mapping generators: ~2, ~3, ~5

Template:Val list

Badness: 0.677 × 10-3

Thrush

Subgroup: 2.3.5.7.11

Comma list: 126/125, 176/175

Mapping: [⟨1 0 0 -1 -5], ⟨0 1 0 -2 -2], ⟨0 0 1 3 5]]

Mapping generators: ~2, ~3, ~5

Map to lattice: [⟨0 1 1 1 3], ⟨0 1 0 -2 -2]]

Lattice basis:

5/4 length = 0.8576, 6/5 length = 0.9314
Angle(5/4, 6/5) = 74.6239 degrees

Minimax tuning:

[[1 0 0 0 0⟩, [0 1 0 0 0⟩, [1/3 2/3 0 1/3 0⟩, [0 0 0 1 0⟩, [-10/3 4/3 0 5/3 0⟩]
Eigenmonzos: 2, 7/6, 4/3

Template:Val list

Badness: 0.353 × 10-3

Projection pairs: 7 125/18 11 3125/288

Associated temperament: myna

Scales: thrush12

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 176/175, 196/195

Mapping: [⟨1 0 0 -1 -5 0], ⟨0 1 0 -2 -2 -5], ⟨0 0 1 3 5 5]]

Vals: Template:Val list

Badness: 0.677 × 10-3

Bluebird

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 144/143, 176/175

Mapping: [⟨1 0 0 -1 -5 9], ⟨0 1 0 -2 -2 4], ⟨0 0 1 3 5 -5]]

Vals: Template:Val list

Badness: 0.915 × 10-3

Projection pairs: 7 125/18 11 3125/288 13 41472/3125

Nightingale

Subgroup: 2.3.5.7.11.13

Comma list: 66/65, 126/125, 176/175

Mapping: [⟨1 0 0 -1 -5 -4], ⟨0 1 0 -2 -2 -1], ⟨0 0 1 3 5 4]]

Vals: Template:Val list

Badness: 0.837 × 10-3

Veery

Subgroup: 2.3.5.7.11.13

Comma list: 91/90, 126/125, 176/175

Mapping: [⟨1 0 0 -1 -5 2], ⟨0 1 0 -2 -2 4], ⟨0 0 1 3 5 -2]]

Vals: Template:Val list

Badness: 0.991 × 10-3

Thrasher

Subgroup: 2.3.5.7.11

Comma list: 56/55, 100/99

Mapping: [⟨1 0 0 -1 2], ⟨0 1 0 -2 -2], ⟨0 0 1 3 2]]

Mapping generators: ~2, ~3, ~5

Map to lattice: [⟨0 1 0 -2 -2], ⟨0 1 1 1 0]]

Lattice basis:

6/5 length = 0.9089, 5/4 length = 1.2007
Angle (6/5, 5/4) = 98.8447

Minimax tuning:

[[1 0 0 0 0⟩, [1 3/4 0 1/4 -3/8⟩, [1 1/2 0 1/2 -1/4⟩, [0 0 0 1 0⟩, [2 -1/2 0 1/2 1/4⟩]
Eigenmonzos: 2, 8/7, 11/9

Template:Val list *

* optimal patent val: 34

Badness: 0.480 × 10-3

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 91/90, 100/99, 126/125

Mapping: [⟨1 0 0 -1 2 2], ⟨0 1 0 -2 -2 4], ⟨0 0 1 3 2 -2]]

Vals: Template:Val list *

* optimal patent val: 34

Badness: 0.876 × 10-3

Mockingbird

Subgroup: 2.3.5.7.11.13

Comma list: 40/39, 100/99, 126/125

Mapping: [⟨1 0 0 -1 2 3], ⟨0 1 0 -2 -2 -1], ⟨0 0 1 3 2 1]]

Vals: Template:Val list

Badness: 0.859 × 10-3

Catbird

Subgroup: 2.3.5.7.11.13

Comma list: 78/77, 100/99, 126/125

Mapping: [⟨1 0 0 -1 2 0], ⟨0 1 0 -2 -2 -5], ⟨0 0 1 3 2 5]]

Vals: Template:Val list

Badness: 0.905 × 10-3

Aplonis

Subgroup: 2.3.5.7.11

Comma list: 126/125, 540/539

Mapping: [⟨1 0 0 -1 4], ⟨0 1 0 -2 7], ⟨0 0 1 3 -5]]

Template:Val list

Badness: 0.648 × 10-3

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 144/143, 196/195

Mapping: [⟨1 0 0 -1 4 0], ⟨0 1 0 -2 7 -5], ⟨0 0 1 3 -5 5]]

Vals: Template:Val list

Badness: 0.821 × 10-3

Oxpecker

Subgroup: 2.3.5.7.11

Comma list: 121/120, 126/125

Mapping: [⟨1 0 1 2 2], ⟨0 1 1 1 1], ⟨0 0 -2 -6 -1]]

Template:Val list

Badness: 0.699 × 10-3

Woodpecker

Subgroup: 2.3.5.7.11.13

Comma list: 66/65, 121/120, 126/125

Mapping: [⟨1 0 1 2 2 2], ⟨0 1 1 1 1 1], ⟨0 0 -2 -6 -1 -1]]

Vals: Template:Val list

Badness: 1.093 × 10-3

Treecreeper

Subgroup: 2.3.5.7.11

Comma list: 126/125, 1232/1215

Mapping: [⟨1 0 0 -1 -3], ⟨0 1 0 -2 7], ⟨0 0 1 3 -2]]

Template:Val list

Badness: 1.585 × 10-3

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 91/90, 126/125, 352/351

Mapping: [⟨1 0 0 -1 -3 2], ⟨0 1 0 -2 7 4], ⟨0 0 1 3 -2 -2]]

Vals: Template:Val list

Badness: 1.588 × 10-3

Cuckoo

Subgroup: 2.3.5.7.11

Comma list: 126/125, 243/242

Mapping: [⟨1 1 0 -3 2], ⟨0 2 0 -4 5], ⟨0 0 1 3 0]]

Template:Val list

Badness: 0.933 × 10-3

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 196/195, 243/242

Mapping: [⟨1 1 0 -3 2 -5], ⟨0 2 0 -4 5 -10], ⟨0 0 1 3 0 5]]

Vals: Template:Val list

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