Catalog of rank-4 temperaments: Difference between revisions

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Switch to Sintel's badness, WE & CWE tunings (2/)
Keenanismic (385/384): confirm minimax tuning
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: error map: {{val| 0.000 +0.211 -1.442 -1.215 -1.635 -1.608 }}
: error map: {{val| 0.000 +0.211 -1.442 -1.215 -1.635 -1.608 }}


[[Minimax tuning]]: {{confirm}} <!-- contradiction with the data in Keenanismic family -->
[[Minimax tuning]]:  
* [[13-odd-limit|13-]] and [[15-odd-limit]]: ~2 = {{val| 1 0 0 0 0 0 }}, ~3 = {{val| 0 1 0 0 0 0 }}, ~5 = {{val| 2/3 4/3 1/3 0 0 -1/3 }}, ~7 = {{val| 19/6 -1/6 -1/6 1/2 -1/2 1/6 }}
* [[13-odd-limit|13-]] and [[15-odd-limit]]: ~2 = {{val| 1 0 0 0 0 0 }}, ~3 = {{val| 0 1 0 0 0 0 }}, ~5 = {{val| 2/3 4/3 1/3 0 0 -1/3 }}, ~7 = {{val| 19/6 -1/6 -1/6 1/2 -1/2 1/6 }}
: [[eigenmonzo basis|Unchanged-interval (eigenmonzo) basis]]: 2.3.11/7.13/5
: [[eigenmonzo basis|unchanged-interval (eigenmonzo) basis]]: 2.3.11/7.13/5


{{Optimal ET sequence|legend=1| 12e, 15, 19, 22f, 26, 31f, 41, 46, 53, 72, 87, 125f, 140, 159, 212, 299, 371df, 465cef, 677cdeeff, 764cdeeff }}
{{Optimal ET sequence|legend=1| 12e, 15, 19, 22f, 26, 31f, 41, 46, 53, 72, 87, 125f, 140, 159, 212, 299, 371df, 465cef, 677cdeeff, 764cdeeff }}

Revision as of 18:38, 4 March 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.

A rank-4 temperament has a period and three additional independent generators, for a total of four dimensions. Typical examples include 7-limit JI, full 11-limit temperament with a one-dimensional comma basis, and full 13-limit temperament with a two-dimensional comma basis.

Cake (45/44)

Subgroup: 2.3.5.7.11

Comma list: 45/44

Mapping[1 0 0 0 -2], 0 1 0 0 2], 0 0 1 0 1], 0 0 0 1 0]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • WE: ~2 = 1202.4372 ¢, ~3/2 = 693.2306 ¢, ~5/4 = 374.6677 ¢, ~7/4 = 963.8387 ¢
error map: +2.437 -6.287 -6.772 -0.113 +14.685]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 693.1966 ¢, ~5/4 = 376.0821 ¢, ~7/4 = 965.0600 ¢
error map: 0.000 -8.758 -10.232 -3.766 +11.157]

Optimal ET sequence7d, 9, 10, 12, 19, 26, 45

Badness (Sintel): 0.400

Mothwellsmic (99/98)

Subgroup: 2.3.5.7.11

Comma list: 99/98

Mapping[1 0 0 0 1], 0 1 0 0 -2], 0 0 1 0 0], 0 0 0 1 2]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • WE: ~2 = 1200.3175 ¢, ~3/2 = 700.0109 ¢, ~5/4 = 385.6677 ¢, ~7/4 = 973.2571 ¢
error map: +0.318 -1.627 -0.011 +5.066 -3.873]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 700.0599 ¢, ~5/4 = 385.9307 ¢, ~7/4 = 973.4880 ¢
error map: 0.000 -1.895 -0.383 +4.662 -4.462]

Optimal ET sequence5, 8d, 9, 12, 17c, 19e, 22, 31, 53, 84e, 96, 127

Badness (Sintel): 0.545

Ptolemismic (100/99)

Subgroup: 2.3.5.7.11

Comma list: 100/99

Mapping[1 0 0 0 2], 0 1 0 0 -2], 0 0 1 0 2], 0 0 0 1 0]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • WE: ~2 = 1199.2633 ¢, ~3/2 = 704.5205 ¢, ~5/4 = 383.8317 ¢, ~7/4 = 970.2843 ¢
error map: -0.737 +1.829 -3.955 -0.015 +4.358]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 704.4751 ¢, ~5/4 = 383.0756 ¢, ~7/4 = 969.8904 ¢
error map: 0.000 +2.520 -3.238 +1.065 +5.883]

Optimal ET sequence7d, 8d, 10e, 12, 15, 19, 22, 27e, 34d, 41, 90e, 131e *

* optimal patent val: 104

Badness (Sintel): 0.411

Biyatismic (121/120)

Subgroup: 2.3.5.7.11

Comma list: 121/120

Mapping[1 0 1 0 2], 0 1 1 0 1], 0 0 -2 0 -1], 0 0 0 1 0]]

Mapping generators: ~2, ~3, ~11/10, ~7

Optimal tunings:

  • WE: ~2 = 1200.6628 ¢, ~3/2 = 701.8452 ¢, ~11/10 = 157.8337 ¢, ~7/4 = 967.4929 ¢
error map: +0.663 +0.553 +1.190 -0.007 -5.318]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.9848 ¢, ~11/10 = 157.6099 ¢, ~7/4 = 967.8187 ¢
error map: 0.000 +0.030 +0.451 -1.007 -6.943]

Optimal ET sequence14c, 15, 22, 31, 46, 53, 60e, 68, 77, 91e, 99, 130e, 159ee, 190ee

Badness (Sintel): 0.629

Valinorsmic (176/175)

Subgroup: 2.3.5.7.11

Comma list: 176/175

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

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • WE: ~2 = 1199.3113 ¢, ~3/2 = 702.6414 ¢, ~5/4 = 389.5404 ¢, ~7/4 = 971.5534 ¢
error map: -0.689 -0.022 +1.849 +1.350 -2.061]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.5869 ¢, ~5/4 = 389.3935 ¢, ~7/4 = 971.5196 ¢
error map: 0.000 +0.632 +3.080 +2.694 -1.011]

Optimal ET sequence22, 27e, 31, 46, 53, 58, 80, 111, 237cd, 268cd

Badness (Sintel): 0.339

Tridecimal valinorsmic

Subgroup: 2.3.5.7.11.13

Comma list: 176/175, 351/350

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

Optimal tunings:

  • WE: ~2 = 1199.3397 ¢, ~3/2 = 702.5360 ¢, ~5/4 = 389.5451 ¢, ~7/4 = 971.5415 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.6943 ¢, ~5/4 = 389.3823 ¢, ~7/4 = 971.5305 ¢

Optimal ET sequence: 22, 27e, 31, 46, 53, 58, 80, 104c, 111, 268cd

Badness (Sintel): 0.603

Rastmic (243/242)

Rastmic halves 3/2 into two 11/9's, 32/27 into two 12/11's, and 25/24 into two 45/44~55/54's.

Subgroup: 2.3.5.7.11

Comma list: 243/242

Mapping[1 1 0 0 2], 0 2 0 0 5], 0 0 1 0 0], 0 0 0 1 0]]

Mapping generators: ~2, ~11/9, ~5, ~7

Optimal tunings:

  • WE: ~2 = 1200.0635 ¢, ~11/9 = 350.5439 ¢, ~5/4 = 386.1857 ¢, ~7/4 = 968.6977 ¢
error map: +0.064 -0.804 -0.001 -0.001 +1.529]
  • CWE: ~2 = 1200.0000 ¢, ~11/9 = 350.5486 ¢, ~5/4 = 386.2387 ¢, ~7/4 = 968.7352 ¢
error map: 0.000 -0.858 -0.075 -0.091 +1.425]

Optimal ET sequence7d, 10, 14c, 17c, 24, 27e, 31, 41, 58, 72, 130, 202

Badness (Sintel): 0.928

Frostmic (245/242)

Subgroup: 2.3.5.7.11

Comma list: 245/242

Mapping[1 0 1 0 0], 0 1 0 0 0], 0 0 2 0 1], 0 0 0 1 1]]

Mapping generators: ~2, ~3, ~11/7, ~7

Optimal tunings:

  • WE: ~2 = 1200.2442 ¢, ~3/2 = 701.7038 ¢, ~11/7 = 792.3594 ¢, ~7/4 = 964.4060 ¢
error map: +0.244 -0.007 -1.351 -3.931 +5.936]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7533 ¢, ~11/7 = 792.3351 ¢, ~7/4 = 964.5274 ¢
error map: 0.000 -0.202 -1.644 -4.298 +5.545]

Optimal ET sequence9, 12, 15, 23de, 24, 26, 27e, 38d, 41, 91, 106d

Badness (Sintel): 1.64

Akua (352/351, 847/845)

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 847/845

Mapping[1 0 0 10 0 5], 0 1 0 -6 0 -3], 0 0 1 1 0 0], 0 0 0 0 1 1]]

Mapping generators: ~2, ~3, ~5, ~11

Optimal tunings:

  • WE: ~2 = 1199.6918 ¢, ~3/2 = 702.7270 ¢, ~5/4 = 386.9729 ¢, ~11/8 = 551.3122 ¢
error map: -0.308 +0.464 +0.043 -0.064 -0.930 +1.062]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.8960 ¢, ~5/4 = 386.7835 ¢, ~11/8 = 551.0679 ¢
error map: 0.000 +0.941 +0.470 +0.581 -0.025 +1.852]

Optimal ET sequence12f, 17c, 24d, 29, 41, 46, 53, 58, 87, 111, 140, 152f, 198, 350f, 437f, 490f

Badness (Sintel): 0.669

Keenanismic (385/384)

Subgroup: 2.3.5.7.11

Comma list: 385/384

Mapping[1 0 0 0 7], 0 1 0 0 1], 0 0 1 0 -1], 0 0 0 1 -1]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • WE: ~2 = 1200.4104 ¢, ~3/2 = 701.6916 ¢, ~5/4 = 385.1761 ¢, ~7/4 = 967.5421 ¢
error map: +0.410 +0.147 -0.317 -0.463 -0.703]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.6933 ¢, ~5/4 = 385.1491 ¢, ~7/4 = 967.3004 ¢
error map: 0.000 -0.262 -1.165 -1.525 -2.074]

Minimax tuning:

  • 11-odd-limit: ~2 = [1 0 0 0 0, ~3 = [0 1 0 0 0, ~5 = [7/3 1/3 2/3 -1/3 -1/3, ~7 = [7/3 1/3 -1/3 2/3 -1/3
Unchanged-interval (eigenmonzo) basis: 2.3.7/5.11/5

Optimal ET sequence9, 10, 12e, 15, 19, 22, 31, 41, 53, 68, 72, 118, 159, 190, 212, 284, 330e, 402de

Badness (Sintel): 0.277

Martwin

Subgroup: 2.3.5.7.11.13

Comma list: 325/324, 385/384

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

Lattice basis:

4/3 length = 1.0820, 6/5 length = 1.3935, 10/9 length = 1.6247

Optimal tunings:

  • WE: ~2 = 1200.3494 ¢, ~3/2 = 702.2131 ¢, ~5/4 = 384.8666 ¢, ~7/4 = 967.8487 ¢
error map: +0.349 +0.608 -0.748 -0.278 -0.422 -0.710]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.1659 ¢, ~5/4 = 384.8721 ¢, ~7/4 = 967.6109 ¢
error map: 0.000 +0.211 -1.442 -1.215 -1.635 -1.608]

Minimax tuning:

  • 13- and 15-odd-limit: ~2 = 1 0 0 0 0 0], ~3 = 0 1 0 0 0 0], ~5 = 2/3 4/3 1/3 0 0 -1/3], ~7 = 19/6 -1/6 -1/6 1/2 -1/2 1/6]
unchanged-interval (eigenmonzo) basis: 2.3.11/7.13/5

Optimal ET sequence12e, 15, 19, 22f, 26, 31f, 41, 46, 53, 72, 87, 125f, 140, 159, 212, 299, 371df, 465cef, 677cdeeff, 764cdeeff

Badness (Sintel): 0.579

Ancient

Subgroup: 2.3.5.7.11.13

Comma list: 385/384, 625/624

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

Optimal tunings:

  • WE: ~2 = 1200.4130 ¢, ~3/2 = 701.6863 ¢, ~5/4 = 385.2319 ¢, ~7/4 = 967.5188 ¢
error map: +0.413 +0.144 -0.256 -0.481 -0.730 -0.047]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.6838 ¢, ~5/4 = 385.2497 ¢, ~7/4 = 967.2556 ¢
error map: 0.000 -0.271 -1.064 -1.570 -2.139 -1.213]

Optimal ET sequence15, 19, 22, 31, 50, 53, 72, 87, 103, 140, 159, 190, 243e, 315ef, 330e, 402def

Badness (Sintel): 0.675

Commas 351/350, 385/384

Subgroup: 2.3.5.7.11.13

Comma list: 351/350, 385/384

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

Optimal tunings:

  • WE: ~2 = 1200.6793 ¢, ~3/2 = 700.7455 ¢, ~5/4 = 385.5609 ¢, ~7/4 = 967.5816 ¢
error map: +0.679 -0.530 +0.606 +0.114 -0.998 -1.343]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 700.5141 ¢, ~5/4 = 385.6072 ¢, ~7/4 = 967.1521 ¢
error map: 0.000 -1.441 -0.706 -1.674 -3.563 -3.703]

Optimal ET sequence19, 22, 26, 31, 46, 53, 72, 103, 149, 221ef, 324bdef, 473bdeeff, 495bdeefff, 545bddeefff, 598bcdeeefff

Badness (Sintel): 0.781

Zaxa

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 385/384

Mapping[1 0 0 0 7 12], 0 1 0 0 1 -2], 0 0 1 0 -1 -1], 0 0 0 1 -1 -1]]

Optimal tunings:

  • WE: ~2 = 1200.1117 ¢, ~3/2 = 702.6588 ¢, ~5/4 = 385.6821 ¢, ~7/4 = 968.0061 ¢
error map: +0.112 +0.815 -0.408 -0.596 -1.901 +1.137]
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.6029 ¢, ~5/4 = 385.6441 ¢, ~7/4 = 967.9030 ¢
error map: 0.000 +0.648 -0.670 -0.923 -2.262 +0.720]

Optimal ET sequence22, 31, 41, 46, 53, 77, 87, 118, 140, 258e, 461e

Badness (Sintel): 0.880

Commas 364/363, 385/384

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 385/384

Mapping[1 0 0 0 7 12], 0 1 0 0 1 3], 0 0 1 0 -1 -2], 0 0 0 1 -1 -3]]

Optimal tunings:

  • WE: ~2 = 1200.4593 ¢, ~3/2 = 701.9714 ¢, ~5/4 = 384.8903 ¢, ~7/4 = 966.4090 ¢
error map: +0.459 +0.476 -0.505 -1.498 +1.191 -1.325]
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 701.9809 ¢, ~5/4 = 384.8523 ¢, ~7/4 = 966.1074 ¢
error map: 0.000 +0.026 -1.461 -2.719 -0.297 -2.612]

Optimal ET sequence9, 15, 22, 26, 31f, 37, 41, 46, 63, 72, 87, 159

Badness (Sintel): 0.871

Commas 385/384, 847/845

Subgroup: 2.3.5.7.11.13

Comma list: 385/384, 847/845

Mapping[1 0 0 0 7 7], 0 1 0 0 1 1], 0 0 1 1 -2 -2], 0 0 0 2 -2 -1]]

Mapping generators: ~2, ~3, ~5, ~13/11

Optimal tunings:

  • WE: ~2 = 1200.3530 ¢, ~3/2 = 701.7283 ¢, ~5/4 = 385.4633 ¢, ~13/11 = 291.0352 ¢
error map: +0.353 +0.126 -0.144 -0.586 -1.175 +0.651]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7205 ¢, ~5/4 = 385.3656 ¢, ~13/11 = 290.9769 ¢
error map: 0.000 -0.235 -0.948 -1.507 -2.282 -0.515]

Optimal ET sequence34, 37, 41, 46, 53, 87, 103, 140, 190, 243e, 330e, 520de, 573dee

Badness (Sintel): 1.09

Werckismic (441/440)

Subgroup: 2.3.5.7.11

Comma list: 441/440

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

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 701.620 ¢, ~5/4 = 386.673 ¢, ~7/4 = 967.775 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 701.496 ¢, ~5/4 = 386.432 ¢, ~7/4 = 967.588 ¢

Minimax tuning:

  • 11-odd-limit: ~2 = [1 0 0 0 0, ~3 = [1/2 2/3 1/6 -1/3 1/6, ~5 = [0 0 1 0 0, ~7 = [1 -2/3 1/3 1/3 1/3
unchanged-interval (eigenmonzo) basis: 2.5.9/7.11

Optimal ET sequence10, 12, 15, 19e, 26, 27e, 31, 41, 58, 72, 118, 130, 190, 248, 289, 320, 609d

Commas 364/363, 441/440

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 441/440

Mapping[1 0 0 0 -3 -8], 0 1 0 0 2 5], 0 0 1 0 -1 -2], 0 0 0 1 2 3]]

Mapping to lattice: [0 1 1 -1 -1 0], 0 0 1 0 -1 -2], 0 0 1 1 1 1]]

Lattice basis:

3/2 length = 1.2263, 14/11 length = 1.4629, 21/16 length = 1.4657

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 701.880 ¢, ~5/4 = 386.523 ¢, ~7/4 = 967.841 ¢

Minimax tuning:

  • 13-odd-limit: ~2 = [1 0 0 0 0 0, ~3 = [5/3 0 1/3 -1/3 -1/3 1/3, ~5 = [1/6 0 5/6 2/3 -5/6 1/3, ~7 = [0 0 0 1 0 0
Eigenmonzos (unchanged-intervals): 2, 11/10, 8/7, 16/13
  • 15-odd-limit: ~2 = [1 0 0 0 0 0, ~3 = [5/4 1/4 1/4 -1/4 -1/4 1/4, ~5 = [5/4 -3/4 5/4 -1/4 -1/4 1/4, ~7 = [17/8 -11/8 5/8 -1/8 3/8 1/8
Eigenmonzos (unchanged-intervals): 2, 14/13, 6/5, 11/9

Optimal ET sequence12f, 14cf, 15, 17c, 26, 29, 31f, 41, 46, 58, 72, 87, 130, 217, 289

Commas 351/350, 441/440

Subgroup: 2.3.5.7.11.13

Comma list: 351/350, 441/440

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

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 701.175 ¢, ~5/4 = 387.330 ¢, ~7/4 = 968.480 ¢

Optimal ET sequence12f, 14cf, 19e, 26, 27e, 31, 45ef, 46, 58, 72, 103, 130, 233, 279, 409, 512bf, 642bf

Commas 196/195, 352/351

Subgroup: 2.3.5.7.11.13

Comma list: 196/195, 352/351

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

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.601 ¢, ~5/4 = 387.137 ¢, ~7/4 = 966.418 ¢

Optimal ET sequence10, 12f, 17c, 19e, 27e, 29, 31, 41, 46, 58, 87, 118, 145, 232

Tannic

Subgroup: 2.3.5.7.11.13

Comma list: 441/440, 1287/1280

Mapping[1 0 0 0 -3 11], 0 1 0 0 2 -4], 0 0 1 0 -1 2], 0 0 0 1 2 -2]]

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 700.555 ¢, ~5/4 = 387.816 ¢, ~7/4 = 967.984 ¢

Optimal ET sequence17c, 26, 29, 31, 43, 46, 60e, 72, 103, 149, 221ef, 324bdef, 473bdeeff, 545bddeefff

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 273/272, 441/440, 561/560

Mapping[1 0 0 0 -3 11 7], 0 1 0 0 2 -4 -3], 0 0 1 0 -1 2 2], 0 0 0 1 2 -2 -1]]

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 700.606 ¢, ~5/4 = 387.655 ¢, ~7/4 = 967.876 ¢

Optimal ET sequence17cg, 26, 29g, 31, 43, 46, 60e, 72, 103, 149, 221ef

Commas 441/440, 847/845

Subgroup: 2.3.5.7.11.13

Comma list: 441/440, 847/845

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

Mapping generators: ~2, ~3, ~5, ~13/11

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 701.611 ¢, ~5/4 = 386.882 ¢, ~13/11 = 290.287 ¢

Optimal ET sequence12f, 16, 17c, 25e, 29, 41, 46, 58, 87, 103, 145, 149, 161, 190, 248, 438d

Swetismic (540/539)

Subgroup: 2.3.5.7.11

Comma list: 540/539

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

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 701.6167 ¢, ~5/4 = 386.0717 ¢, ~7/4 = 969.5334 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 701.6950 ¢, ~5/4 = 386.1796 ¢, ~7/4 = 969.6366 ¢

Optimal ET sequence8d, 9, 10, 12e, 14c, 17c, 19, 22, 27e, 31, 41, 53, 58, 72, 130, 152, 224, 354, 506e, 578, 730de, 761d, 985d, 1115de, 1267dde

Badness (Smith): 0.0105 × 10-6

Commas 540/539, 729/728

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 729/728

Mapping[1 0 0 0 2 -3], 0 1 0 0 3 6], 0 0 1 0 1 0], 0 0 0 1 -2 -1]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 701.6687 ¢, ~5/4 = 386.0441 ¢, ~7/4 = 969.5668 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 701.7230 ¢, ~5/4 = 386.1818 ¢, ~7/4 = 969.6607 ¢

Optimal ET sequence12e, 14cf, 17c, 19, 22f, 31f, 39df, 41, 53, 58, 72, 111, 130, 183, 224, 354, 578, 985d, 1267ddef

Badness (Smith): 1.73 × 10-6

Commas 540/539, 847/845

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 847/845

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

Mapping generators: ~2, ~3, ~5, ~13/11

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 701.284 ¢, ~5/4 = 386.211 ¢, ~13/11 = 291.733 ¢

Optimal ET sequence8d, 9, 12e, 17c, 32f, 33cd, 36ce, 41, 53, 58, 94, 103, 111, 152f, 255, 407f

Badness (Smith): 3.97 × 10-6

Commas 540/539, 625/624

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 625/624

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

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 701.702 ¢, ~5/4 = 385.631 ¢, ~7/4 = 969.467 ¢

Optimal ET sequence19, 22, 31, 49f, 50, 53, 72, 103, 121, 152f, 193, 224

Badness (Smith): 3.59 × 10-6

Commas 540/539, 676/675

Subgroup: 2.3.5.7.11

Comma list: 540/539, 676/675

Mapping[1 0 0 0 2 -1], 0 2 0 0 6 3], 0 0 1 0 1 1], 0 0 0 1 -2 0]]

Mapping generators: ~2, ~26/15, ~5, ~7

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~26/15 = 950.906 ¢, ~5/4 = 386.474 ¢, ~7/4 = 969.892 ¢

Optimal ET sequence9, 10, 14cf, 19, 33cdff, 39df, 48c, 49, 53, 58, 72, 111, 121, 130, 183, 251e, 304d, 376, 434de

Badness (Smith): 3.06 × 10-6

Pentacircle (896/891)

Subgroup: 2.3.5.7.11

Comma list: 896/891

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

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 703.576 ¢, ~5/4 = 386.314 ¢, ~7/4 = 968.126 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 703.743 ¢, ~5/4 = 387.245 ¢, ~7/4 = 969.048 ¢

Optimal ET sequence12, 17c, 19e, 22, 34d, 39d, 41, 58, 80, 87, 99e, 121, 145, 167, 208, 266e, 699bbcdeee

Badness (Smith): 0.0658 × 10-6

Tridecimal pentacircle a.k.a. gentle

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 364/363

Mapping[1 0 0 0 7 12], 0 1 0 0 -4 -7], 0 0 1 0 0 0], 0 0 0 1 1 1]]

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 703.786 ¢, ~5/4 = 386.314 ¢, ~7/4 = 967.665 ¢

Optimal ET sequence12f, 17c, 22, 29, 34d, 41, 46, 58, 80, 87, 121, 167, 179ef, 208, 266ef, 433bceef, 641bbceeeff, 699bbcdeeeff

Badness (Smith): 3.375 × 10-6

Topsy (847/845, 1001/1000)

Subgroup: 2.3.5.7.11.13

Comma list: 847/845, 1001/1000

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

Mapping generators: ~2, ~3, ~5, ~13/10

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 701.955 ¢, ~5/4 = 386.699 ¢, ~13/10 = 454.558 ¢

Optimal ET sequence16, 21, 24d, 29, 37, 45ef, 50, 53, 58, 87, 103, 111, 140, 190, 198, 301, 388, 689e

Lehmerismic (3025/3024)

Subgroup: 2.3.5.7.11

Comma list: 3025/3024

Mapping[1 0 0 0 2], 0 1 0 1 2], 0 0 1 0 -1], 0 0 0 2 1]]

Mapping generators: ~2, ~3, ~5, ~55/36

Optimal tuning:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 701.998 ¢, ~5/4 = 386.252 ¢, ~55/36 = 733.436 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 701.978 ¢, ~5/4 = 386.232 ¢, ~55/36 = 733.430 ¢

Optimal ET sequence7d, 8d, 10, 15, 23de, 24d, 26, 31, 41, 65d, 72, 118, 152, 224, 270, 342, 612, 836, 1106, 1448, 2554, 4002e, 5720e, 7168cee

Commas 2080/2079, 3025/3024

Subgroup: 2.3.5.7.11.13

Comma list: 2080/2079, 3025/3024

Mapping[1 0 0 0 2 -3], 0 1 0 1 2 6], 0 0 1 0 -1 -2], 0 0 0 2 1 3]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.076 ¢, ~5/4 = 386.208 ¢, ~55/36 = 733.438 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.099 ¢, ~5/4 = 386.248 ¢, ~55/36 = 733.449 ¢

Optimal ET sequence15, 26, 41, 46, 72, 87, 111, 183, 224, 270, 311, 494

Trimitone (8019/8000)

Subgroup: 2.3.5.7.11

Comma list: 8019/8000

Mapping[1 0 0 0 6], 0 1 0 0 -6], 0 0 1 0 3], 0 0 0 1 0]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • CTE: ~2 = 1200.0000 ¢, ~3/2 = 701.5449 ¢, ~5/4 = 386.7538 ¢, ~7/4 = 968.8259 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.4729 ¢, ~5/4 = 386.5374 ¢, ~7/4 = 968.6210 ¢

Optimal ET sequence12, 19, 26, 39d, 46, 53, 58, 72, 118, 130, 183, 190, 248, 255, 301, 373, 804, 876, 1177be

Badness (Smith): 0.0820 × 10-6

Commas 729/728, 1001/1000

Subgroup: 2.3.5.7.11.13

Comma list: 729/728, 1001/1000

Mapping[1 0 0 0 6 -3], 0 1 0 0 -6 6], 0 0 1 0 3 0], 0 0 0 1 0 -1]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • CTE: ~2 = 1200.0000 ¢, ~3/2 = 701.5537 ¢, ~5/4 = 386.7680 ¢, ~7/4 = 968.8144 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.4770 ¢, ~5/4 = 386.5437 ¢, ~7/4 = 968.6150 ¢

Optimal ET sequence53, 58, 72, 111, 130, 183, 190, 243e, 248, 301, 373, 804, 1177be

Badness (Smith): 3.33 × 10-6

Kalismic (9801/9800)

Subgroup: 2.3.5.7.11

Comma list: 9801/9800

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

Mapping generators: ~99/70, ~3, ~5, ~7

Optimal tuning:

  • CTE: ~99/70 = 600.000 ¢, ~3/2 = 701.942 ¢, ~5/4 = 386.327 ¢, ~7/4 = 968.846 ¢
  • CWE: ~99/70 = 600.000 ¢, ~3/2 = 701.940 ¢, ~5/4 = 386.323 ¢, ~7/4 = 968.840 ¢

Optimal ET sequence8d, 10, 12, 22, 34d, 46, 58, 72, 118, 130, 152, 224, 270, 342, 612, 836, 1084, 1106, 1236, 1506, 1578, 1848, 2684, 4038, 4190, 4532, 11254, 15786e, 21896e

Commas 1716/1715, 2080/2079

Subgroup: 2.3.5.7.11.13

Comma list: 1716/1715, 2080/2079

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

Lattice basis:

3/2 length = 1.1956, 7/4 length = 1.4506, 14/13 length = 1.8299

Optimal tuning (CTE): ~99/70 = 600.000 ¢, ~3/2 = 702.024 ¢, ~5/4 = 386.294 ¢, ~7/4 = 969.114 ¢

Minimax tuning:

  • 13- and 15-odd-limit: ~99/70 = [1/2 0 0 0 0 0, ~3 = [7/10 4/5 0 -2/5 0 1/5, ~5 = [7/10 -1/5 1 -2/5 0 1/5, ~7 = [7/5 -2/5 0 1/5 0 2/5
Eigenmonzo (unchanged-intervals) basis: 2, 6/5, 16/13, 9/7

Optimal ET sequence10e, 12f, 14cf, 22f, 26, 36ce, 46, 58, 72, 130, 198, 224, 270, 494, 764, 1258, 1810d, 2304d, 2574d

Unisquary (12005/11979)

Subgroup: 2.3.5.7.11

Comma list: 12005/11979

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

Mapping generators: ~2, ~3, ~5, ~11/7

Optimal tunings:

  • CTE and CWE: ~2 = 1200.000 ¢, ~3/2 = 702.031 ¢, ~5/4 = 386.233 ¢, ~11/7 = 783.508 ¢

Optimal ET sequence12, 21, 23de, 26, 37, 46, 58, 72, 118, 130, 190, 239, 311, 441, 559, 752e, 870

Hensquary

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 1716/1715

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

Mapping generators: ~2, ~3, ~5, ~11/7

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.072 ¢, ~5/4 = 386.528 ¢, ~11/7 = 783.823 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.253 ¢, ~5/4 = 386.776 ¢, ~11/7 = 783.875 ¢

Optimal ET sequence26, 37, 46, 58, 72, 121, 130, 193, 239, 251e, 323e, 369

Ekasquary

Subgroup: 2.3.5.7.11.13

Comma list: 1575/1573, 4459/4455

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

Mapping generators: ~2, ~3, ~5, ~11/7

Optimal tunings:

  • CTE and CWE: ~2 = 1200.000 ¢, ~3/2 = 701.952 ¢, ~5/4 = 386.139 ¢, ~11/7 = 783.548 ¢

Optimal ET sequence46f, 49f, 58, 72, 118, 121, 130, 190, 193, 248, 311, 441, 752e, 1072

Semicanousmic (14641/14580)

Subgroup: 2.3.5.7.11

Comma list: 14641/14580

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

Mapping generators: ~2, ~3, ~18/11, ~7

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.334 ¢, ~18/11 = 854.555 ¢, ~7/4 = 968.826 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.292 ¢, ~18/11 = 854.548 ¢, ~7/4 = 968.756 ¢

Optimal ET sequence14c, 17c, 24, 31, 63, 80, 87, 111, 118, 198, 212, 292, 323, 410, 851e

Badness (Smith): 0.351 × 10-6

Tridecimal semicanousmic

Subgroup: 2.3.5.7.11.13

Comma list: 2080/2079, 14641/14580

Mapping: [1 0 2 0 1 -6], 0 1 2 0 2 3], 0 0 -4 0 -1 3], 0 0 0 1 0 1]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.469 ¢, ~18/11 = 854.644 ¢, ~7/4 = 968.959 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.483 ¢, ~18/11 = 854.642 ¢, ~7/4 = 968.989 ¢

Optimal ET sequence: 87, 111, 181, 198, 323, 410

Badness (Smith): 17.1 × 10-6

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 715/714, 1089/1088, 14641/14580

Mapping: [1 0 2 0 1 -6 -4], 0 1 2 0 2 3 6], 0 0 -4 0 -1 3 -2], 0 0 0 1 0 1 0]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.413 ¢, ~18/11 = 854.633 ¢, ~7/4 = 969.032 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.411 ¢, ~18/11 = 854.634 ¢, ~7/4 = 969.026 ¢

Optimal ET sequence: 87, 94, 111, 181, 198g, 212g, 292, 323, 410

Badness (Smith): 34.0 × 10-6

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 715/714, 1089/1088, 1216/1215, 1445/1444

Mapping: [1 0 2 0 1 -6 -4 -4], 0 1 2 0 2 3 6 7], 0 0 -4 0 -1 3 -2 -4], 0 0 0 1 0 1 0 0]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.368 ¢, ~18/11 = 854.639 ¢, ~7/4 = 969.075 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.351 ¢, ~18/11 = 854.644 ¢, ~7/4 = 969.010 ¢

Optimal ET sequence: 87, 94, 111, 181, 205, 212gh, 292h, 299, 323, 410, 622ef

Badness (Smith): 41.9 × 10-6

Semiporwellismic (16384/16335)

Subgroup: 2.3.5.7.11

Comma list: 16384/16335

Mapping[1 0 0 0 7], 0 1 1 0 -2], 0 0 2 0 -1], 0 0 0 1 0]]

Mapping generators: ~2, ~3, ~128/99, ~7

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.470 ¢, ~128/99 = 442.106 ¢, ~7/4 = 968.826 ¢

Optimal ET sequence19, 22, 41, 65d, 68, 84, 87, 111, 130, 152, 239, 282, 328, 369, 521e, 1370bcdeee, 1411bcdeee, 1609bccdeee

Badness (Smith): 0.219 × 10-6

Symbiotic (19712/19683)

Subgroup: 2.3.5.7.11

Comma list: 19712/19683

Mapping[1 0 0 0 -8], 0 1 0 0 9], 0 0 1 0 0], 0 0 0 1 -1]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.213 ¢, ~5/4 = 386.314 ¢, ~7/4 = 968.736 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.244 ¢, ~5/4 = 386.406 ¢, ~7/4 = 968.859 ¢

Optimal ET sequence17c, 19e, 24, 34d, 41, 53, 58, 94, 99e, 118, 152, 270, 581, 733, 851, 1003, 1273, 1854, 2124b

Badness (Smith): 0.120 × 10-6

Tridecimal symbiotic

Subgroup: 2.3.5.7.11.13

Comma list: 2080/2079, 19712/19683

Mapping[1 0 0 0 -8 -13], 0 1 0 0 9 12], 0 0 1 0 0 -1], 0 0 0 1 -1 0]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.228 ¢, ~5/4 = 386.284 ¢, ~7/4 = 968.789 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.254 ¢, ~5/4 = 386.401 ¢, ~7/4 = 968.898 ¢

Optimal ET sequence17c, 34dff, 36ce, 41, 53, 58, 94, 111, 152f, 212, 217, 270, 581, 851, 1003, 1273, 1854, 2124b, 3127bf

Badness (Smith): 3.31 × 10-6

2.3.5.7.11.13.19 subgroup

Subgroup: 2.3.5.7.11.13.19

Comma list: 1216/1215, 1540/1539, 2080/2079

Mapping: [1 0 0 0 -8 -13 -6], 0 1 0 0 9 12 5], 0 0 1 0 0 -1 1], 0 0 0 1 -1 0 0]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~3/2 = 702.230 ¢, ~5/4 = 386.304 ¢, ~7/4 = 968.797 ¢
  • CWE: ~2 = 1200.000 ¢, ~3/2 = 702.255 ¢, ~5/4 = 386.408 ¢, ~7/4 = 968.902 ¢

Optimal ET sequence: 17ch, 24f, 34dffh, 36ceh, 41, 53, 58h, 94, 111, 152f, 212h, 217, 270, 581, 851, 1003, 1273, 1854, 2124b, 3127bfh

Badness (Smith): 4.37 × 10-6

Olympic (131072/130977)

Subgroup: 2.3.5.7.11

Comma list: 131072/130977

Mapping[1 0 0 0 17], 0 1 0 0 -5], 0 0 1 0 0], 0 0 0 1 -2]]

Mapping generators: ~2, ~3, ~5, ~7

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.103 ¢, ~5/4 = 386.314 ¢, ~7/4 = 969.012 ¢

Optimal ET sequence41, 53, 84, 87, 130, 183, 224, 270, 494, 764, 1164, 1205, 1475, 1969, 2239, 3133de, 4608cde, 5102bcde, 10474bbccdddeee

Tridecimal olympic

Subgroup: 2.3.5.7.11.13

Comma list: 2080/2079, 4096/4095

Mapping[1 0 0 0 17 12], 0 1 0 0 -5 -2], 0 0 1 0 0 -1], 0 0 0 1 -2 -1]]

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.103 ¢, ~5/4 = 386.298 ¢, ~7/4 = 969.007 ¢

Optimal ET sequence41, 46, 53, 84, 87, 130, 183, 217, 224, 270, 494, 764, 935, 1075, 1205, 1699, 2280, 2774e *

* optimal patent val: 3044

Seascape (160083/160000)

Subgroup: 2.3.5.7.11

Comma list: 160083/160000

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

Mapping generators: ~2, ~400/231, ~5, ~7

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~400/231 = 950.960 ¢, ~5/4 = 386.417 ¢, ~7/4 = 968.751 ¢

Optimal ET sequence15, 19, 29, 43, 53, 58, 68, 72

Fifthchromismic (1610510/1594323)

Subgroup: 2.3.5.7.11

Comma list: 1610510/1594323

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

Mapping generators: ~2, ~3, ~22/9, ~7

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.738 ¢, ~11/9 = 344.406 ¢, ~7/4 = 968.826 ¢

Optimal ET sequence77, 80, 87, 94, 167

Fifthchroma

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 951665/944784

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

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.776 ¢, ~11/9 = 344.410 ¢, ~7/4 = 968.826 ¢

Optimal ET sequence77, 80, 87, 94, 167

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 352/351, 715/714, 155771/155520

Mapping: [1 0 4 0 -1 4 6], 0 1 3 0 2 -1 3], 0 0 -5 0 1 1 -3], 0 0 0 1 0 0 -1]]

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.713 ¢, ~11/9 = 344.403 ¢, ~7/4 = 969.193 ¢

Optimal ET sequence: 77, 80, 87, 94, 167

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 352/351, 715/714, 1463/1458, 2057/2052

Mapping: [1 0 4 0 -1 4 6 2], 0 1 3 0 2 -1 3 4], 0 0 -5 0 1 1 -3 -1], 0 0 0 1 0 0 -1 -1]]

Optimal tuning (CTE): ~2 = 1200.000 ¢, ~3/2 = 702.736 ¢, ~11/9 = 344.417 ¢, ~7/4 = 969.159 ¢

Optimal ET sequence: 77, 80, 87, 94, 167h