Starling family: Difference between revisions

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Temperaments discussed elsewhere include
Temperaments discussed elsewhere include
* ''[[Erato]]'' (+81/80) → [[Didymus rank-3 family #Erato|Didymus rank-3 family]]
* ''[[Erato]]'' (+81/80) → [[Didymus rank-3 family #Erato|Didymus rank-3 family]]
* ''[[Sensigh]]'' (+245/243) → [[Sensamagic family #Sensigh|Sensamagic family]]
* ''[[Sensigh]]'' (+245/243) → [[Sengic family #Sensigh|Sengic family]]
* ''[[Oxpecker]]'' (+121/120) → [[Biyatismic clan #Oxpecker|Biyatismic clan]]
* ''[[Oxpecker]]'' (+121/120) → [[Biyatismic clan #Oxpecker|Biyatismic clan]]
* ''[[Cuckoo]]'' (+243/242) → [[Rastmic rank-3 clan #Cuckoo|Rastmic rank-3 clan]]
* ''[[Cuckoo]]'' (+243/242) → [[Rastmic rank-3 clan #Cuckoo|Rastmic rank-3 clan]]


Considered below are starling, thrush, thrasher, aplonis, and treecreeper.  
Considered below are thrush, starnova, thrasher, aplonis, and treecreeper.  
 
== Undecimal starling ==
[[Subgroup]]: 2.3.5.7.11
 
[[Comma list]]: 126/125, 385/384
 
{{Mapping|legend=1| 1 0 0 -1 8 | 0 1 0 -2 3 | 0 0 1 3 -4 }}
 
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1200.6133{{c}}, ~3/2 = 700.4314{{c}}, ~5/4 = 388.3236{{c}}
: [[error map]]: {{val| +0.613 -0.910 +3.237 -2.878 -1.478 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 700.4020{{c}}, ~5/4 = 388.3631{{c}}
: error map: {{val| 0.000 -1.553 +2.049 -4.541 -3.564 }}
 
{{Optimal ET sequence|legend=1| 12e, 15, 19, 27, 31, 46, 77, 96d, 127d, 173d, 204de }}
 
[[Badness]] (Sintel): 0.813


== Thrush ==
== Thrush ==
Line 114: Line 97:
[[Badness]] (Sintel): 0.424
[[Badness]] (Sintel): 0.424


[[Projection pair]]s: <code>7 125/18 11 3125/288</code>
[[Projection pair]]s: <code>7 125/18</code> <code>11 3125/288</code>


=== 13-limit ===
=== 13-limit ===
Line 148: Line 131:
Badness (Sintel): 0.856
Badness (Sintel): 0.856


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


=== Nightingale ===
=== Nightingale ===
Line 179: Line 162:


Badness (Sintel): 0.927
Badness (Sintel): 0.927
== Starnova ==
Starnova tempers out [[385/384]]. This temperament used to be known as ''undecimal starling'', but was decanonicalized in 2026. The name ''starnova'' was proposed by [[Flora Canou]] after [[Gene Ward Smith]]'s [[Star]] and [[Nova]] scales.
[[Subgroup]]: 2.3.5.7.11
[[Comma list]]: 126/125, 385/384
{{Mapping|legend=1| 1 0 0 -1 8 | 0 1 0 -2 3 | 0 0 1 3 -4 }}
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1200.6133{{c}}, ~3/2 = 700.4314{{c}}, ~5/4 = 388.3236{{c}}
: [[error map]]: {{val| +0.613 -0.910 +3.237 -2.878 -1.478 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 700.4020{{c}}, ~5/4 = 388.3631{{c}}
: error map: {{val| 0.000 -1.553 +2.049 -4.541 -3.564 }}
{{Optimal ET sequence|legend=1| 12e, 15, 19, 27, 31, 46, 77, 96d, 127d, 173d, 204de }}
[[Badness]] (Sintel): 0.813
[[Projection pair]]s: <code>7 125/18</code> <code>11 6912/625</code>
Scales: [[Star and Nova]]
=== 13-limit ===
Subgroup: 2.3.5.7.11.13
Comma list: 126/125, 196/195, 385/384
Mapping: {{mapping| 1 0 0 -1 8 0 | 0 1 0 -2 3 -5 | 0 0 1 3 -4 5 }}
Optimal tunings:
* WE: ~2 = 1200.5083{{c}}, ~3/2 = 700.7452{{c}}, ~5/4 = 388.4655{{c}}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 700.5708{{c}}, ~5/4 = 388.4346{{c}}
{{Optimal ET sequence|legend=0| 15f, 19, 27, 31, 46, 77, 96d }}
Badness (Sintel): 1.07


== Thrasher ==
== Thrasher ==
{{See also| Ptolemismic clan #Thrasher }}
{{See also| Ptolemismic clan }}


[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11

Latest revision as of 12:46, 4 May 2026

This is a list showing technical temperament data. For an explanation of what information is shown here, you may look at the technical data guide for regular temperaments.

The starling family of rank-3 temperaments tempers out the starling comma (ratio: 126/125, monzo: [1 2 -3 1⟩), also known as septimal semicomma.

Starling

Main article: Starling and thrush

The head of the starling family is starling, which tempers out 126/125. Starling has a normal generator list 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 135edo in the nonpatent 135c val ⟨135 214 314 379].

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

Subgroup: 2.3.5.7

Comma list: 126/125

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

mapping generators: ~2, ~3, ~5

Mapping 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°

Optimal tunings:

  • WE: ~2 = 1199.7931 ¢, ~3/2 = 701.1306 ¢, ~5/4 = 390.0298 ¢
error map: ⟨-0.207 -1.031 +3.302 -1.618]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.0811 ¢, ~5/4 = 389.8833 ¢
error map: ⟨0.000 -0.874 +3.570 -1.338]

Minimax tuning:

[[1 0 0 0⟩, [0 1 0 0⟩, [1/3 2/3 0 1/3⟩, [0 0 0 1⟩]
unchanged-interval (eigenmonzo) basis: 2.3.7

Optimal ET sequence: 7d, 8d, 12, 19, 27, 31, 46, 58, 77, 135c, 166c

Badness (Sintel): 0.308

Projection pair: 7 125/18

Minkowski blocks
  • 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

Overview to extensions

Temperaments discussed elsewhere include

Considered below are thrush, starnova, thrasher, aplonis, and treecreeper.

Thrush

Main article: Starling and thrush

Thrush is the main extension of starling into the 11-limit. It may be described as 12 & 15 & 31, and is loosely associated with myna.

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 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°

Optimal tunings:

  • WE: ~2 = 1199.4742 ¢, ~3/2 = 701.6379 ¢, ~5/4 = 391.0192 ¢
error map: ⟨-0.526 -0.843 +3.654 -0.621 -1.075]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.6298 ¢, ~5/4 = 390.8558 ¢
error map: ⟨0.000 -0.325 +4.542 +0.482 -0.298]

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⟩]
unchanged-interval (eigenmonzo) basis: 2.3.7

Optimal ET sequence: 12, 15, 19e, 27e, 31, 46, 58, 89, 135c, 193c, 224c

Badness (Sintel): 0.424

Projection pairs: 7 125/18 11 3125/288

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]]

Optimal tunings:

  • WE: ~2 = 1199.2727 ¢, ~3/2 = 702.2858 ¢, ~5/4 = 391.3567 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.4562 ¢, ~5/4 = 391.2080 ¢

Optimal ET sequence: 12f, 19e, 27e, 31, 46, 58, 104c, 135c, 193cf

Badness (Sintel): 0.633

Bluebird

Not to be confused with Bluebirds.

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]]

Optimal tunings:

  • WE: ~2 = 1198.7153 ¢, ~3/2 = 701.647 ¢, ~5/4 = 391.9180 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.6263 ¢, ~5/4 = 391.7786 ¢

Optimal ET sequence: 12, 15, 27e, 31, 43, 58, 205cceff, 263ccdeefff

Badness (Sintel): 0.856

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]]

Optimal tunings:

  • WE: ~2 = 1200.1476 ¢, ~3/2 = 699.2886 ¢, ~5/4 = 388.2054 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 699.2840 ¢, ~5/4 = 388.2437 ¢

Optimal ET sequence: 12f, 15, 19e, 27eff, 31

Badness (Sintel): 0.783

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]]

Optimal tunings:

  • WE: ~2 = 1199.7998 ¢, ~3/2 = 704.4117 ¢, ~5/4 = 391.7571 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 704.3959 ¢, ~5/4 = 391.6910 ¢

Optimal ET sequence: 12, 15, 19e, 27e, 31f, 46

Badness (Sintel): 0.927

Starnova

Starnova tempers out 385/384. This temperament used to be known as undecimal starling, but was decanonicalized in 2026. The name starnova was proposed by Flora Canou after Gene Ward Smith's Star and Nova scales.

Subgroup: 2.3.5.7.11

Comma list: 126/125, 385/384

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

Optimal tunings:

  • WE: ~2 = 1200.6133 ¢, ~3/2 = 700.4314 ¢, ~5/4 = 388.3236 ¢
error map: ⟨+0.613 -0.910 +3.237 -2.878 -1.478]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 700.4020 ¢, ~5/4 = 388.3631 ¢
error map: ⟨0.000 -1.553 +2.049 -4.541 -3.564]

Optimal ET sequence: 12e, 15, 19, 27, 31, 46, 77, 96d, 127d, 173d, 204de

Badness (Sintel): 0.813

Projection pairs: 7 125/18 11 6912/625

Scales: Star and Nova

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 196/195, 385/384

Mapping: [⟨1 0 0 -1 8 0], ⟨0 1 0 -2 3 -5], ⟨0 0 1 3 -4 5]]

Optimal tunings:

  • WE: ~2 = 1200.5083 ¢, ~3/2 = 700.7452 ¢, ~5/4 = 388.4655 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 700.5708 ¢, ~5/4 = 388.4346 ¢

Optimal ET sequence: 15f, 19, 27, 31, 46, 77, 96d

Badness (Sintel): 1.07

Thrasher

See also: Ptolemismic clan

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 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°

Optimal tunings:

  • WE: ~2 = 1196.9183 ¢, ~3/2 = 706.1793 ¢, ~5/4 = 394.5223 ¢
error map: ⟨-3.082 +1.143 +2.045 -6.863 +13.041]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 706.2523 ¢, ~5/4 = 392.7970 ¢
error map: ⟨0.000 +4.297 +6.483 -2.940 +21.771]

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⟩]
unchanged-interval (eigenmonzo) basis: 2.7.11/9

Optimal ET sequence: 7d, 8d, 12, 15, 19, 27e *

* optimal patent val: 34

Badness (Sintel): 0.577

Scales: Thrasher chromatic, Thrasher diatonic

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 56/55, 91/90, 100/99

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

Optimal tunings:

  • WE: ~2 = 1197.4723 ¢, ~3/2 = 707.3847 ¢, ~5/4 = 394.2040 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 707.1440 ¢, ~5/4 = 392.7909 ¢

Optimal ET sequence: 7d, 8d, 12, 15, 19, 27e, 69bceef *

* optimal patent val: 34

Badness (Sintel): 0.820

Mockingbird

Subgroup: 2.3.5.7.11.13

Comma list: 40/39, 56/55, 100/99

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

Optimal tunings:

  • WE: ~2 = 1193.3128 ¢, ~3/2 = 710.0779 ¢, ~5/4 = 400.7221 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 711.2922 ¢, ~5/4 = 398.0867 ¢

Optimal ET sequence: 7d, 8d, 12f, 15, 27eff

Badness (Sintel): 0.804

Catbird

Subgroup: 2.3.5.7.11.13

Comma list: 56/55, 78/77, 100/99

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

Optimal tunings:

  • WE: ~2 = 1196.8488 ¢, ~3/2 = 704.8749 ¢, ~5/4 = 394.9837 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 704.9205 ¢, ~5/4 = 393.2290 ¢

Optimal ET sequence: 7df, 8d, 12f, 19, 27e, 66cdeeef

Badness (Sintel): 0.846

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]]

Optimal tunings:

  • WE: ~2 = 1199.6006 ¢, ~3/2 = 700.5746 ¢, ~5/4 = 390.2558 ¢
error map: ⟨-0.399 -1.780 +3.143 -0.406 +1.026]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 700.4342 ¢, ~5/4 = 389.9796 ¢
error map: ⟨0.000 -1.521 +3.666 +0.244 +1.824]

Optimal ET sequence: 12e, 19, 27e, 31, 58, 89, 197c, 228c

Badness (Sintel): 0.778

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]]

Optimal tunings:

  • WE: ~2 = 1199.0609 ¢, ~3/2 = 701.2333 ¢, ~5/4 = 390.8385 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.0203 ¢, ~5/4 = 390.2413 ¢

Optimal ET sequence: 8d, 19, 27e, 31, 50, 58, 166cef, 224ceeff

Badness (Sintel): 0.768

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]]

Optimal tunings:

  • WE: ~2 = 1198.8957 ¢, ~3/2 = 704.9055 ¢, ~5/4 = 392.8725 ¢
error map: ⟨-1.104 +1.846 +4.350 -3.332 -2.725]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 705.0045 ¢, ~5/4 = 392.3159 ¢
error map: ⟨0.000 +3.050 +6.002 -1.887 -0.918]

Optimal ET sequence: 7d, 12e, 19e, 27e, 39d, 46, 119c

Badness (Sintel): 1.91

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]]

Optimal tunings:

  • WE: ~2 = 1199.7878 ¢, ~3/2 = 704.6703 ¢, ~5/4 = 391.3513 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 704.7011 ¢, ~5/4 = 391.2846 ¢

Optimal ET sequence: 7d, 12e, 19e, 27e, 46

Badness (Sintel): 1.48

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