Didymus rank-3 family: Difference between revisions

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The '''didymus rank-3 family''' are rank-3 temperaments tempering out the didymus comma, [[81/80]]. If nothing else is tempered out we have a [[7-limit]] [[planar temperament]], with an [[11-limit]] comma we get an 11-limit temperament, and so forth.
{{Technical data page}}
The '''didymus rank-3 family''' of [[rank-3 temperament|rank-3]] [[regular temperament|temperaments]] [[tempering out|tempers out]] the didymus comma, [[81/80]]. If nothing else is tempered out we have a [[7-limit]] rank-3 temperament, with an [[11-limit]] comma we get an 11-limit temperament, and so forth.
 
Most of these temperaments were named by [[Gene Ward Smith]] in 2010<ref>[https://yahootuninggroupsultimatebackup.github.io/tuning/topicId_100647.html#100648 Yahoo! Tuning Group | ''Higher-rank meantone extensions (muse temperaments?)'']</ref>.  


Temperaments discussed elsewhere include:
Temperaments discussed elsewhere include:
* ''[[Urania]]'' (+243/242 or 121/120) → [[Rastmic rank three clan#Urania|Rastmic rank three clan]]
* ''[[Urania]]'' (+243/242 or 121/120) → [[Rastmic rank-3 clan #Urania|Rastmic rank-3 clan]]


== Didymus ==
== Didymus ==
Line 11: Line 14:
{{Mapping|legend=1| 1 0 -4 0 | 0 1 4 0 | 0 0 0 1 }}
{{Mapping|legend=1| 1 0 -4 0 | 0 1 4 0 | 0 0 0 1 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 696.2387, ~7/4 = 964.9090
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1201.3906{{c}}, ~3/2 = 697.0455{{c}}, ~7/4 = 966.0272{{c}}
: [[error map]]: {{val| +1.391 -3.519 +1.868 -0.018 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 696.6512{{c}}, ~7/4 = 966.5654{{c}}
: error map: {{val| 0.000 -5.304 +0.291 -2.261 }}


{{Optimal ET sequence|legend=1| 12, 19, 31, 81 }}
{{Optimal ET sequence|legend=1| 12, 19, 31, 81, 112b, 143b }}


[[Badness]]: 0.095 × 10<sup>-3</sup>
[[Badness]] (Sintel): 0.419


== Euterpe ==
== Euterpe ==
Euterpe tempers out 99/98 and is related to [[huygens]].
[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11


Line 24: Line 33:
{{Mapping|legend=1| 1 0 -4 0 1 | 0 1 4 0 -2 | 0 0 0 1 2 }}
{{Mapping|legend=1| 1 0 -4 0 1 | 0 1 4 0 -2 | 0 0 0 1 2 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 696.1982, ~7/4 = 968.4280
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1201.2743{{c}}, ~3/2 = 696.9375{{c}}, ~7/4 = 969.4564{{c}}
: [[error map]]: {{val| +1.274 -3.743 +1.436 +3.179 -2.457 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 696.5797{{c}}, ~7/4 = 969.7942{{c}}
: error map: {{val| 0.000 -5.375 +0.005 +0.968 -4.889 }}


[[Minimax tuning]]:  
[[Minimax tuning]]:  
* [[11-odd-limit]]
* [[11-odd-limit]]
: [{{monzo| 1 0 0 0 0 }}, {{monzo| 1 0 1/4 0 0 }}, {{monzo| 0 0 1 0 0 }}, {{monzo| 0 0 0 1 0 }}, {{monzo| -1 0 -1/2 2 0 }}]
: [{{monzo| 1 0 0 0 0 }}, {{monzo| 1 0 1/4 0 0 }}, {{monzo| 0 0 1 0 0 }}, {{monzo| 0 0 0 1 0 }}, {{monzo| -1 0 -1/2 2 0 }}]
: [[Eigenmonzo]]s (unchanged-intervals): 2, 5, 7
: [[eigenmonzo basis|eigenmonzo (unchanged-interval) basis]]: 2.5.7
 
{{Optimal ET sequence|legend=1| 12, 17c, 19e, 26, 31, 88, 119be, 150be }}


{{Optimal ET sequence|legend=1| 12, 17c, 19e, 26, 31, 88 }}
[[Badness]] (Sintel): 0.644


[[Badness]]: 0.536 × 10<sup>-3</sup>
== Clio ==
Clio tempers out 176/175. It is another temperament related to huygens.  


== Calliope  ==
[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11


[[Comma list]]: 45/44, 81/80
[[Comma list]]: 81/80, 176/175


{{Mapping|legend=1| 1 0 -4 0 -6 | 0 1 4 0 6 | 0 0 0 1 0 }}
{{Mapping|legend=1| 1 0 -4 0 -12 | 0 1 4 0 8 | 0 0 0 1 1 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 696.1982, ~7/4 = 968.4280
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1200.6376{{c}}, ~3/2 = 697.6207{{c}}, ~7/4 = 969.1442{{c}}
: [[error map]]: {{val| +0.638 -3.697 +4.169 +1.593 -2.483 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 697.3350{{c}}, ~7/4 = 969.0152{{c}}
: error map: {{val| 0.000 -4.620 +3.026 +0.189 -3.622 }}


[[Minimax tuning]]:  
[[Minimax tuning]]:  
* [[11-odd-limit]]
* [[11-odd-limit]]
: [{{monzo| 1 0 0 0 0 }}, {{monzo| 1 0 0 0 1/6 }}, {{monzo| 0 0 0 0 2/3 }}, {{monzo| 1 -1 0 1 1/6 }}, {{monzo| 0 0 0 0 1 }}]
: [{{monzo| 1 0 0 0 0 }}, {{monzo| 1 0 1/4 0 0 }}, {{monzo| 0 0 1 0 0 }}, {{monzo| 0 0 0 1 0 }}, {{monzo| -4 0 2 1 0 }}]
: [[Eigenmonzo basis|Eigenmonzo (unchanged-interval) basis]]: 2.7/3.11
: [[eigenmonzo basis|eigenmonzo (unchanged-interval) basis]]: 2.5.7
 
{{Optimal ET sequence|legend=1| 7, 12, 19e, 24, 31, 105, 129, 136b }}


{{Optimal ET sequence|legend=1| 7d, 12, 19, 26, 45 }}
[[Badness]] (Sintel): 0.886


[[Badness]]: 0.530 × 10<sup>-3</sup>
== Terpsichore ==
Terpsichore tempers out 540/539 and is related to [[meanpop]].  


== Erato ==
[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11


[[Comma list]]: 81/80, 126/125
[[Comma list]]: 81/80, 540/539
 
{{Mapping|legend=1| 1 0 -4 0 -2 | 0 1 4 0 7 | 0 0 0 1 -2 }}
 
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1201.5055{{c}}, ~3/2 = 697.1093{{c}}, ~7/4 = 965.2101{{c}}
: [[error map]]: {{val| +1.506 -3.340 +2.123 -0.605 -0.468 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 696.7166{{c}}, ~7/4 = 964.9479{{c}}
: error map: {{val| 0.000 -5.238 +0.553 -3.878 -4.197 }}
 
{{Optimal ET sequence|legend=1| 12e, 14c, 17c, 19, 31, 81, 112b }}
 
[[Badness]] (Sintel): 1.02
 
[[Complexity spectrum]]: 4/3, 10/9, 9/8, 6/5, 9/7, 7/5, 7/6, 5/4, 8/7, 11/9, 12/11, 11/8, 11/10, 14/11


{{Mapping|legend=1| 1 0 -4 -13 0 | 0 1 4 10 0 | 0 0 0 0 1 }}
== Polyhymnia ==
Polyhymnia tempers out 385/384. It is another temperament related to meanpop.


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 696.4949, ~11/8 = 547.0252
[[Subgroup]]: 2.3.5.7.11


{{Optimal ET sequence|legend=1| 12, 19, 31, 50, 81 }}
[[Comma list]]: 81/80, 385/384


[[Badness]]: 0.558 × 10<sup>-3</sup>
{{Mapping|legend=1| 1 0 -4 0 11 | 0 1 4 0 -3 | 0 0 0 1 -1 }}


=== 13-limit  ===
[[Optimal tuning]]s:
Subgroup: 2.3.5.7.11.13
* [[WE]]: ~2 = 1201.4003{{c}}, ~3/2 = 697.0429{{c}}, ~7/4 = 965.9954{{c}}
: [[error map]]: {{val| +1.400 -3.512 +1.858 -0.030 -0.040 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 696.3248{{c}}, ~7/4 = 964.8389{{c}}
: error map: {{val| 0.000 -5.630 -1.014 -3.987 -5.131 }}


Comma list: 81/80, 105/104, 126/125
{{Optimal ET sequence|legend=1| 7, 12e, 19, 24, 26, 31, 81, 112b }}


Mapping: {{mapping| 1 0 -4 -13 0 -20 | 0 1 4 10 0 15 | 0 0 0 0 1 0 }}
[[Badness]] (Sintel): 1.07


Optimal tuning (POTE): ~2 = 1\1, ~3/2 = 695.9883, ~11/8 = 545.6817
Scales: [[polyhymnia12]]


{{Optimal ET sequence|legend=1| 12f, 19, 31, 50, 81 }}
== Calliope ==
Calliope tempers out 45/44 and is related to [[flattone]].


== Clio  ==
[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11


[[Comma list]]: 81/80, 176/175
[[Comma list]]: 45/44, 81/80


{{Mapping|legend=1| 1 0 -4 0 -12 | 0 1 4 0 8 | 0 0 0 1 1 }}
{{Mapping|legend=1| 1 0 -4 0 -6 | 0 1 4 0 6 | 0 0 0 1 0 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 697.2502, ~7/4 = 968.6295
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1202.0621{{c}}, ~3/2 = 694.5448{{c}}, ~7/4 = 964.5866{{c}}
: [[error map]]: {{val| +2.062 -5.348 -8.135 -0.115 +15.951 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 693.9085{{c}}, ~7/4 = 965.3621{{c}}
: error map: {{val| 0.000 -8.047 -10.680 -3.464 +12.133 }}


[[Minimax tuning]]:  
[[Minimax tuning]]:  
* [[11-odd-limit]]
* [[11-odd-limit]]
: {{monzo| 1 0 0 0 0 }}, {{monzo| 1 0 1/4 0 0 }}, {{monzo| 0 0 1 0 0 }}, {{monzo| 0 0 0 1 0 }}, {{monzo| -4 0 2 1 0 }}]
: [{{monzo| 1 0 0 0 0 }}, {{monzo| 1 0 0 0 1/6 }}, {{monzo| 0 0 0 0 2/3 }}, {{monzo| 1 -1 0 1 1/6 }}, {{monzo| 0 0 0 0 1 }}]
: [[Eigenmonzo]]s (unchanged-intervals): 2, 5, 7
: [[eigenmonzo basis|Eigenmonzo (unchanged-interval) basis]]: 2.7/3.11


{{Optimal ET sequence|legend=1| 7, 12, 19e, 24, 31, 105, 129 }}
{{Optimal ET sequence|legend=1| 7d, 12, 19, 26, 45 }}
 
[[Badness]]: 0.738 × 10<sup>-3</sup>


== Polyhymnia  ==
[[Badness]] (Sintel): 0.637


== Thalia ==
[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11


[[Comma list]]: 81/80, 385/384
[[Comma list]]: 33/32, 55/54


{{Mapping|legend=1| 1 0 -4 0 11 | 0 1 4 0 -3 | 0 0 0 1 -1 }}
{{Mapping|legend=1| 1 0 -4 0 5 | 0 1 4 0 -1 | 0 0 0 1 0 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 696.2305, ~7/4 = 964.8695
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1206.5832{{c}}, ~3/2 = 695.8763{{c}}, ~7/4 = 955.4695{{c}}
: [[error map]]: {{val| +6.583 +0.504 -2.809 -0.190 -20.862 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 693.1206{{c}}, ~7/4 = 955.1393{{c}}
: error map: {{val| 0.000 -8.834 -13.831 -13.687 -44.439 }}


{{Optimal ET sequence|legend=1| 7, 12e, 19, 24, 26, 31 }}
{{Optimal ET sequence|legend=1| 5, 7, 12e, 14c, 19e, 33cdee, 52cdeee }}


Scales: [[polyhymnia12]]
[[Badness]] (Sintel): 0.898


== Thalia  ==
== Melpomene ==
[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11


[[Comma list]]: 33/32, 55/54
[[Comma list]]: 56/55, 81/80
 
{{Mapping|legend=1| 1 0 -4 0 7 | 0 1 4 0 -4 | 0 0 0 1 1 }}
 
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1198.7942{{c}}, ~3/2 = 698.5204{{c}}, ~7/4 = 963.2674{{c}}
: [[error map]]: {{val| -1.206 -4.640 +7.768 -7.970 +11.839 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 698.9964{{c}}, ~7/4 = 962.5723{{c}}
: error map: {{val| 0.000 -2.959 +9.672 -6.254 +15.269 }}


{{Mapping|legend=1| 1 0 -4 0 5 | 0 1 4 0 -1 | 0 0 0 1 0 }}
{{Optimal ET sequence|legend=1| 12, 17c, 19, 24, 31e, 36 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 692.0796, ~7/4 = 950.2565
[[Badness]] (Sintel): 0.929


{{Optimal ET sequence|legend=1| 5, 7, 12e, 14c, 19e }}
== Erato ==
Erato uses the same mapping for the 7-limit as septimal meantone, but adds an independent generator for prime 11.


== Melpomene  ==
[[Subgroup]]: 2.3.5.7.11
[[Subgroup]]: 2.3.5.7.11


[[Comma list]]: 81/80, 56/55
[[Comma list]]: 81/80, 126/125


{{Mapping|legend=1| 1 0 -4 0 7 | 0 1 4 0 -4 | 0 0 0 1 1 }}
{{Mapping|legend=1| 1 0 -4 -13 0 | 0 1 4 10 0 | 0 0 0 0 1 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 699.2230, ~7/4 = 964.2363
[[Optimal tuning]]s:
* [[WE]]: ~2 = 1201.2358{{c}}, ~3/2 = 697.2122{{c}}, ~11/8 = 547.5886{{c}}
: [[error map]]: {{val| +1.236 -3.507 +2.535 -0.412 -0.022 }}
* [[CWE]]: ~2 = 1200.0000{{c}}, ~3/2 = 696.6562{{c}}, ~11/8 = 548.5396{{c}}
: error map: {{val| 0.000 -5.299 +0.311 -2.264 -2.778 }}


{{Optimal ET sequence|legend=1| 7d, 12, 17c, 19, 24, 31e, 36 }}
{{Optimal ET sequence|legend=1| 12, 19, 31, 50, 81, 112b }}


[[Badness]] (Sintel): 0.670


== Terpsichore  ==
=== 13-limit ===
[[Subgroup]]: 2.3.5.7.11
Subgroup: 2.3.5.7.11.13


[[Comma list]]: 81/80, 540/539
Comma list: 81/80, 105/104, 126/125


{{Mapping|legend=1| 1 0 -4 0 -2 | 0 1 4 0 7 | 0 0 0 1 -2 }}
Mapping: {{mapping| 1 0 -4 -13 0 -20 | 0 1 4 10 0 15 | 0 0 0 0 1 0 }}


[[Optimal tuning]] ([[POTE]]): ~2 = 1\1, ~3/2 = 696.2358, ~7/4 = 964.0006
Optimal tunings:
* WE: ~2 = 1201.6213{{c}}, ~3/2 = 696.9287{{c}}, ~11/8 = 546.4190{{c}}
* CWE: ~2 = 1200.0000{{c}}, ~3/2 = 696.1573{{c}}, ~11/8 = 547.5865{{c}}


{{Optimal ET sequence|legend=1| 14c, 17c, 19, 31, 81, 112b }}
{{Optimal ET sequence|legend=0| 12f, 19, 31, 50, 69de, 81, 119bdde }}


[[Badness]]: 0.850 × 10<sup>-3</sup>
Badness (Sintel): 0.823


[[Complexity spectrum]]: 4/3, 10/9, 9/8, 6/5, 9/7, 7/5, 7/6, 5/4, 8/7, 11/9, 12/11, 11/8, 11/10, 14/11
== References ==


[[Category:Temperament families]]
[[Category:Temperament families]]
[[Category:Pages with mostly numerical content]]
[[Category:Didymus rank-3 family| ]] <!-- main article -->
[[Category:Didymus rank-3 family| ]] <!-- main article -->
[[Category:Didymus| ]] <!-- key article -->
[[Category:Didymus| ]] <!-- key article -->
[[Category:Rank 3]]
[[Category:Rank 3]]

Latest revision as of 13:50, 27 August 2025

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 didymus rank-3 family of rank-3 temperaments tempers out the didymus comma, 81/80. If nothing else is tempered out we have a 7-limit rank-3 temperament, with an 11-limit comma we get an 11-limit temperament, and so forth.

Most of these temperaments were named by Gene Ward Smith in 2010[1].

Temperaments discussed elsewhere include:

Didymus

Subgroup: 2.3.5.7

Comma list: 81/80

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

Optimal tunings:

  • WE: ~2 = 1201.3906 ¢, ~3/2 = 697.0455 ¢, ~7/4 = 966.0272 ¢
error map: ⟨+1.391 -3.519 +1.868 -0.018]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 696.6512 ¢, ~7/4 = 966.5654 ¢
error map: ⟨0.000 -5.304 +0.291 -2.261]

Optimal ET sequence: 12, 19, 31, 81, 112b, 143b

Badness (Sintel): 0.419

Euterpe

Euterpe tempers out 99/98 and is related to huygens.

Subgroup: 2.3.5.7.11

Comma list: 81/80, 99/98

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

Optimal tunings:

  • WE: ~2 = 1201.2743 ¢, ~3/2 = 696.9375 ¢, ~7/4 = 969.4564 ¢
error map: ⟨+1.274 -3.743 +1.436 +3.179 -2.457]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 696.5797 ¢, ~7/4 = 969.7942 ¢
error map: ⟨0.000 -5.375 +0.005 +0.968 -4.889]

Minimax tuning:

[[1 0 0 0 0⟩, [1 0 1/4 0 0⟩, [0 0 1 0 0⟩, [0 0 0 1 0⟩, [-1 0 -1/2 2 0⟩]
eigenmonzo (unchanged-interval) basis: 2.5.7

Optimal ET sequence: 12, 17c, 19e, 26, 31, 88, 119be, 150be

Badness (Sintel): 0.644

Clio

Clio tempers out 176/175. It is another temperament related to huygens.

Subgroup: 2.3.5.7.11

Comma list: 81/80, 176/175

Mapping: [⟨1 0 -4 0 -12], ⟨0 1 4 0 8], ⟨0 0 0 1 1]]

Optimal tunings:

  • WE: ~2 = 1200.6376 ¢, ~3/2 = 697.6207 ¢, ~7/4 = 969.1442 ¢
error map: ⟨+0.638 -3.697 +4.169 +1.593 -2.483]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 697.3350 ¢, ~7/4 = 969.0152 ¢
error map: ⟨0.000 -4.620 +3.026 +0.189 -3.622]

Minimax tuning:

[[1 0 0 0 0⟩, [1 0 1/4 0 0⟩, [0 0 1 0 0⟩, [0 0 0 1 0⟩, [-4 0 2 1 0⟩]
eigenmonzo (unchanged-interval) basis: 2.5.7

Optimal ET sequence: 7, 12, 19e, 24, 31, 105, 129, 136b

Badness (Sintel): 0.886

Terpsichore

Terpsichore tempers out 540/539 and is related to meanpop.

Subgroup: 2.3.5.7.11

Comma list: 81/80, 540/539

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

Optimal tunings:

  • WE: ~2 = 1201.5055 ¢, ~3/2 = 697.1093 ¢, ~7/4 = 965.2101 ¢
error map: ⟨+1.506 -3.340 +2.123 -0.605 -0.468]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 696.7166 ¢, ~7/4 = 964.9479 ¢
error map: ⟨0.000 -5.238 +0.553 -3.878 -4.197]

Optimal ET sequence: 12e, 14c, 17c, 19, 31, 81, 112b

Badness (Sintel): 1.02

Complexity spectrum: 4/3, 10/9, 9/8, 6/5, 9/7, 7/5, 7/6, 5/4, 8/7, 11/9, 12/11, 11/8, 11/10, 14/11

Polyhymnia

Polyhymnia tempers out 385/384. It is another temperament related to meanpop.

Subgroup: 2.3.5.7.11

Comma list: 81/80, 385/384

Mapping: [⟨1 0 -4 0 11], ⟨0 1 4 0 -3], ⟨0 0 0 1 -1]]

Optimal tunings:

  • WE: ~2 = 1201.4003 ¢, ~3/2 = 697.0429 ¢, ~7/4 = 965.9954 ¢
error map: ⟨+1.400 -3.512 +1.858 -0.030 -0.040]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 696.3248 ¢, ~7/4 = 964.8389 ¢
error map: ⟨0.000 -5.630 -1.014 -3.987 -5.131]

Optimal ET sequence: 7, 12e, 19, 24, 26, 31, 81, 112b

Badness (Sintel): 1.07

Scales: polyhymnia12

Calliope

Calliope tempers out 45/44 and is related to flattone.

Subgroup: 2.3.5.7.11

Comma list: 45/44, 81/80

Mapping: [⟨1 0 -4 0 -6], ⟨0 1 4 0 6], ⟨0 0 0 1 0]]

Optimal tunings:

  • WE: ~2 = 1202.0621 ¢, ~3/2 = 694.5448 ¢, ~7/4 = 964.5866 ¢
error map: ⟨+2.062 -5.348 -8.135 -0.115 +15.951]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 693.9085 ¢, ~7/4 = 965.3621 ¢
error map: ⟨0.000 -8.047 -10.680 -3.464 +12.133]

Minimax tuning:

[[1 0 0 0 0⟩, [1 0 0 0 1/6⟩, [0 0 0 0 2/3⟩, [1 -1 0 1 1/6⟩, [0 0 0 0 1⟩]
Eigenmonzo (unchanged-interval) basis: 2.7/3.11

Optimal ET sequence: 7d, 12, 19, 26, 45

Badness (Sintel): 0.637

Thalia

Subgroup: 2.3.5.7.11

Comma list: 33/32, 55/54

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

Optimal tunings:

  • WE: ~2 = 1206.5832 ¢, ~3/2 = 695.8763 ¢, ~7/4 = 955.4695 ¢
error map: ⟨+6.583 +0.504 -2.809 -0.190 -20.862]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 693.1206 ¢, ~7/4 = 955.1393 ¢
error map: ⟨0.000 -8.834 -13.831 -13.687 -44.439]

Optimal ET sequence: 5, 7, 12e, 14c, 19e, 33cdee, 52cdeee

Badness (Sintel): 0.898

Melpomene

Subgroup: 2.3.5.7.11

Comma list: 56/55, 81/80

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

Optimal tunings:

  • WE: ~2 = 1198.7942 ¢, ~3/2 = 698.5204 ¢, ~7/4 = 963.2674 ¢
error map: ⟨-1.206 -4.640 +7.768 -7.970 +11.839]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 698.9964 ¢, ~7/4 = 962.5723 ¢
error map: ⟨0.000 -2.959 +9.672 -6.254 +15.269]

Optimal ET sequence: 12, 17c, 19, 24, 31e, 36

Badness (Sintel): 0.929

Erato

Erato uses the same mapping for the 7-limit as septimal meantone, but adds an independent generator for prime 11.

Subgroup: 2.3.5.7.11

Comma list: 81/80, 126/125

Mapping: [⟨1 0 -4 -13 0], ⟨0 1 4 10 0], ⟨0 0 0 0 1]]

Optimal tunings:

  • WE: ~2 = 1201.2358 ¢, ~3/2 = 697.2122 ¢, ~11/8 = 547.5886 ¢
error map: ⟨+1.236 -3.507 +2.535 -0.412 -0.022]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 696.6562 ¢, ~11/8 = 548.5396 ¢
error map: ⟨0.000 -5.299 +0.311 -2.264 -2.778]

Optimal ET sequence: 12, 19, 31, 50, 81, 112b

Badness (Sintel): 0.670

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 81/80, 105/104, 126/125

Mapping: [⟨1 0 -4 -13 0 -20], ⟨0 1 4 10 0 15], ⟨0 0 0 0 1 0]]

Optimal tunings:

  • WE: ~2 = 1201.6213 ¢, ~3/2 = 696.9287 ¢, ~11/8 = 546.4190 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 696.1573 ¢, ~11/8 = 547.5865 ¢

Optimal ET sequence: 12f, 19, 31, 50, 69de, 81, 119bdde

Badness (Sintel): 0.823

References

  1. ↑ Yahoo! Tuning Group | Higher-rank meantone extensions (muse temperaments?)
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