Schismatic family

From Xenharmonic Wiki
(Redirected from Sesquart)
Jump to navigation Jump to search
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 5-limit parent comma for the schismatic (or schismic) family is the schisma of 32805/32768, which is the amount by which the Pythagorean comma exceeds the syntonic comma (81/80), or alternatively put, the difference between a just major third and a Pythagorean diminished fourth.

Schismic, schismatic, a.k.a. helmholtz

Main article: Schismic

The 5-limit version of the temperament is a microtemperament, called schismic, schismatic, or helmholtz. The generator is a fifth, flattened by a fraction of a schisma, and 5/4 is represented by a diminished fourth. This defies the tradition of tertian harmony, as the just major triad on C is C–F♭–G, for example. One may want to adopt an additional module of accidentals such as arrows to represent the comma step, allowing them to write the chord above as C–vE–G.

As a 5-limit system, schismic is far more accurate than meantone but still with manageable complexity. 53edo is a possible tuning for schismic, but you need 118edo if you want to get the full effect. In exact analogy with 1/4-comma meantone there is also 1/8 schismic, with pure major thirds and fifths flattened by 1/8 schisma. Since 1/8 of a schisma is 0.244 ¢, this falls into the range of microtempering. You could also try 1/9 schisma, with pure minor thirds and a minutely better fifth, or 2/17 schisma, with both thirds flat by 1/17 of a schisma, although the differences would be very hard to distinguish unless using a large gamut. Simply leaving the fifths just would also make for a viable tuning, thus collapsing schismic to a simple relabeling of the 3-limit.

Subgroup: 2.3.5

Comma list: 32805/32768

Mapping: [⟨1 0 15], ⟨0 1 -8]]

mapping generators: ~2, ~3

Optimal tunings:

  • WE: ~2 = 1200.0749 ¢, ~3/2 = 701.7797 ¢
error map: ⟨+0.075 -0.100 -0.027]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7308 ¢
error map: ⟨0.000 -0.224 -0.160]

Tuning ranges:

Optimal ET sequence: 12, 29, 41, 53, 118, 171, 289, 460, 749, 3456bc, 4205bc, 4954bc, 5703bbc, 6452bbcc

Badness (Sintel): 0.0999

Overview to extensions

The second comma of the normal comma list defines which 7-limit family member we are looking at. Garibaldi adds [25 -14 0 -1⟩, grackle adds [-44 26 0 1⟩, pontiac adds [-59 39 0 -1⟩, and schism adds [6 -2 0 -1⟩. Those all have a fifth as generator.

Bischismic adds [-69 40 0 2⟩ and has a fifth generator with a half-octave period. Salsa adds [15 -13 0 2⟩ and has a hemififth generator. Hemischis adds [-34 25 0 -2⟩ and has a hemitwelfth generator. Guiron adds [-10 1 0 3⟩, with an ~8/7 generator, three of which give the fifth. Term adds [-94 54 0 3⟩ with a 1/3-octave period. Squirrel, tertiaschis, and countertertiaschis each has a generator that is 1/3 of the fourth. Quadrant adds [-119 68 0 4⟩ with a 1/4-octave period. Kleischismic adds [49 -38 0 4⟩ with a half-octave period and also a bisect generator. Sesquiquartififths adds [-35 15 0 4⟩ and slices the fifth in four.

Temperaments involving larger splits include tsaharuk, quanharuk, quintilipyth, quintaschis, altinex, pogo, sextilifourths, septant, octant, nonant, septiquarschis, and tridecafifths. Those split the schismic structure into five to thirteen parts.

Temperaments discussed elsewhere include:

Considered below are garibaldi, pontiac, grackle, schism, bischismic, kleischismic, salsa, hemischis, term, altinex, squirrel, tertiaschis, countertertiaschis, quadrant, sesquiquartififths, tsaharuk, quanharuk, quintilipyth, quintaschis, sextilifourths, septant, octant, nonant, septiquarschis, and tridecafifths.

The schismatic family boasts a variety of remarkable extensions to subgroups in high prime limits. These are listed at the bottom of this page, in #Subgroup extensions.

Garibaldi

Main article: Garibaldi

Garibaldi tempers out the garischisma, equating the septimal comma with both the syntonic comma and the Pythagorean comma. The 7/4 is found at -14 fifths, represented by the double-diminished octave (C–C𝄫), or down-minor seventh (C-vB♭) with the down-arrow representing the comma step. It necessitates a sharper fifth than pure. Its S-expression-based comma list is {S8/S9, S15}.

Subgroup: 2.3.5.7

Comma list: 225/224, 3125/3087

Mapping: [⟨1 0 15 25], ⟨0 1 -8 -14]]

Optimal tunings:

  • WE: ~2 = 1200.1233 ¢, ~3/2 = 702.1573 ¢
error map: ⟨+0.123 +0.326 -2.709 +2.328]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.0774 ¢
error map: ⟨0.000 +0.122 -2.933 +2.090]

Minimax tuning:

[[1 0 0 0⟩, [5/3 1/15 0 -1/15⟩, [5/3 -8/15 0 8/15⟩, [5/3 -14/15 0 14/15⟩]
unchanged-interval (eigenmonzo) basis: 2.7/3
[[1 0 0 0⟩, [25/16 1/8 0 -1/16⟩, [5/2 -1 0 1/2⟩, [25/8 -7/4 0 7/8⟩]
unchanged-interval (eigenmonzo) basis: 2.9/7

Tuning ranges:

Optimal ET sequence: 12, 29, 41, 53, 94

Badness (Sintel): 0.548

Cassandra

Cassandra is one of the best extensions of garibaldi to the 11- and 13-limit as well as the 2.3.5.7.11.13.19 subgroup, even though it comes with a much higher complexity.

Subgroup: 2.3.5.7.11

Comma list: 225/224, 385/384, 2200/2187

Mapping: [⟨1 0 15 25 -33], ⟨0 1 -8 -14 23]]

Optimal tunings:

  • WE: ~2 = 1200.3089 ¢, ~3/2 = 702.3377 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.1562 ¢

Minimax tuning:

  • 11-odd-limit: ~3/2 = [9/16 1/8 0 -1/16⟩
unchanged-interval (eigenmonzo) basis: 2.9/7

Tuning ranges:

  • 11-odd-limit diamond monotone: ~3/2 = [701.887, 702.439] (31\53 to 24\41)
  • 11-odd-limit diamond tradeoff: ~3/2 = [701.711, 702.915]

Optimal ET sequence: 12e, 41, 53, 94, 229c

Badness (Sintel): 0.906

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 225/224, 275/273, 325/324, 385/384

Mapping: [⟨1 0 15 25 -33 -28], ⟨0 1 -8 -14 23 20]]

Optimal tunings:

  • WE: ~2 = 1200.1703 ¢, ~3/2 = 702.2122 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.1135 ¢

Minimax tuning:

  • 13- and 15-odd-limit: ~3/2 = [19/34 0 0 -1/34 0 1/34⟩
unchanged-interval (eigenmonzo) basis: 2.13/7

Tuning ranges:

  • 13- and 15-odd-limit diamond monotone: ~3/2 = [701.887, 702.439] (31\53 to 24\41)
  • 13-odd-limit diamond tradeoff: ~3/2 = [701.711, 703.597]
  • 15-odd-limit diamond tradeoff: ~3/2 = [701.676, 703.597]

Optimal ET sequence: 41, 53, 94, 429ccdeef, 523ccdeef

Badness (Sintel): 0.854

Cassie

Subgroup: 2.3.5.7.11.13.17

Comma list: 120/119, 154/153, 225/224, 273/272, 325/324

Mapping: [⟨1 0 15 25 -33 -28 -7], ⟨0 1 -8 -14 23 20 7]]

Optimal tunings:

  • WE: ~2 = 1199.8140 ¢, ~3/2 = 701.9833 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.0909 ¢

Optimal ET sequence: 12e, 41, 53, 94g

Badness (Sintel): 1.19

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 120/119, 154/153, 171/170, 190/189, 225/224, 273/272

Mapping: [⟨1 0 15 25 -33 -28 -7 9], ⟨0 1 -8 -14 23 20 7 -3]]

Optimal tunings:

  • WE: ~2 = 1199.9556 ¢, ~3/2 = 702.0530 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.0787 ¢

Optimal ET sequence: 12e, 41, 53

Badness (Sintel): 1.11

Cassandric

Subgroup: 2.3.5.7.11.13.17

Comma list: 225/224, 275/273, 325/324, 375/374, 385/384

Mapping: [⟨1 0 15 25 -33 -28 77], ⟨0 1 -8 -14 23 20 -46]]

Optimal tunings:

  • WE: ~2 = 1200.0046 ¢, ~3/2 = 702.2167 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.0962 ¢

Optimal ET sequence: 41g, 53, 94

Badness (Sintel): 1.18

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 190/189, 209/208, 225/224, 275/273, 325/324, 375/374

Mapping: [⟨1 0 15 25 -33 -28 77 9], ⟨0 1 -8 -14 23 20 -46 -3]]

Optimal tunings:

  • WE: ~2 = 1200.2910 ¢, ~3/2 = 702.2681 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.0967 ¢

Optimal ET sequence: 41g, 53, 94

Badness (Sintel): 1.07

23-limit

Subgroup: 2.3.5.7.11.13.17.19.23

Comma list: 190/189, 209/208, 225/224, 253/252, 275/273, 325/324, 375/374

Mapping: [⟨1 0 15 25 -33 -28 77 9 60], ⟨0 1 -8 -14 23 20 -46 -3 -35]]

Optimal tunings:

  • WE: ~2 = 1200.2970 ¢, ~3/2 = 702.2697 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.0943 ¢

Optimal ET sequence: 41g, 53, 94

Badness (Sintel): 1.08

Cassander

Subgroup: 2.3.5.7.11.13.17

Comma list: 170/169, 225/224, 275/273, 325/324, 385/384

Mapping: [⟨1 0 15 25 -33 -28 -72], ⟨0 1 -8 -14 23 20 48]]

Optimal tunings:

  • WE: ~2 = 1200.1986 ¢, ~3/2 = 702.2598 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.1455 ¢

Optimal ET sequence: 41, 53g, 94

Badness (Sintel): 1.14

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 170/169, 190/189, 209/208, 225/224, 275/273, 325/324

Mapping: [⟨1 0 15 25 -33 -28 -72 9], ⟨0 1 -8 -14 23 20 48 -3]]

Optimal tunings:

  • WE: ~2 = 1200.3057 ¢, ~3/2 = 702.3138 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.1373 ¢

Optimal ET sequence: 41, 53g, 94

Badness (Sintel): 1.07

Andromeda

Subgroup: 2.3.5.7.11

Comma list: 100/99, 225/224, 245/242

Mapping: [⟨1 0 15 25 32], ⟨0 1 -8 -14 -18]]

Optimal tunings:

  • WE: ~2 = 1200.1917 ¢, ~3/2 = 702.4836 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.3599 ¢

Minimax tuning:

  • 11-odd-limit: ~3/2 = [3/5 1/10 0 0 -1/20⟩
unchanged-interval (eigenmonzo) basis: 2.11/9

Tuning ranges:

  • 11-odd-limit diamond monotone: ~3/2 = [700.000, 703.448] (7\12 to 17\29)
  • 11-odd-limit diamond tradeoff: ~3/2 = [701.711, 704.377]

Optimal ET sequence: 12, 29, 41

Badness (Sintel): 0.779

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 100/99, 105/104, 196/195, 245/242

Mapping: [⟨1 0 15 25 32 37], ⟨0 1 -8 -14 -18 -21]]

Optimal tunings:

  • WE: ~2 = 1200.3031 ¢, ~3/2 = 702.7368 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.5420 ¢

Minimax tuning:

  • 13- and 15-odd-limit: ~3/2 = [14/23 2/23 0 0 0 -1/23⟩
unchanged-interval (eigenmonzo) basis: 2.13/9

Tuning ranges:

  • 13- and 15-odd-limit diamond monotone: ~3/2 = [702.439, 703.448] (24\41 to 17\29)
  • 13-odd-limit diamond tradeoff: ~3/2 = [701.711, 704.377]
  • 15-odd-limit diamond tradeoff: ~3/2 = [701.676, 704.377]

Optimal ET sequence: 12f, 29, 41

Badness (Sintel): 0.857

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 100/99, 105/104, 120/119, 189/187, 196/195

Mapping: [⟨1 0 15 25 32 37 -7], ⟨0 1 -8 -14 -18 -21 7]]

Optimal tunings:

  • WE: ~2 = 1199.1984 ¢, ~3/2 = 701.8424 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.3384 ¢

Optimal ET sequence: 12f, 29, 41

Badness (Sintel): 1.19

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 100/99, 105/104, 120/119, 133/132, 189/187, 196/195

Mapping: [⟨1 0 15 25 32 37 -7 9], ⟨0 1 -8 -14 -18 -21 7 -3]]

Optimal tunings:

  • WE: ~2 = 1199.5242 ¢, ~3/2 = 702.0783 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.3711 ¢

Optimal ET sequence: 12f, 29, 41

Badness (Sintel): 1.17

Schisicosiennic

Subgroup: 2.3.5.7.11.13.17

Comma list: 100/99, 105/104, 154/153, 170/169, 196/195

Mapping: [⟨1 0 15 25 32 37 58], ⟨0 1 -8 -14 -18 -21 -34]]

Optimal tunings:

  • WE: ~2 = 1200.6122 ¢, ~3/2 = 703.0830 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.6968 ¢

Optimal ET sequence: 12fg, 29g, 41, 70cd

Badness (Sintel): 1.11

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 100/99, 105/104, 133/132, 154/153, 170/169, 190/189

Mapping: [⟨1 0 15 25 32 37 58 9], ⟨0 1 -8 -14 -18 -21 -34 -3]]

Optimal tunings:

  • WE: ~2 = 1200.7981 ¢, ~3/2 = 703.2199 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.7221 ¢

Optimal ET sequence: 12fg, 29g, 41, 70cd

Badness (Sintel): 1.09

Schisicosiennoid

Subgroup: 2.3.5.7.11.13.17

Comma list: 85/84, 100/99, 105/104, 119/117, 221/220

Mapping: [⟨1 0 15 25 32 37 12], ⟨0 1 -8 -14 -18 -21 -5]]

Optimal tunings:

  • WE: ~2 = 1201.3146 ¢, ~3/2 = 703.4864 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.6491 ¢

Optimal ET sequence: 12f, 29g, 41g

Badness (Sintel): 1.06

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 85/84, 100/99, 105/104, 119/117, 133/132, 153/152

Mapping: [⟨1 0 15 25 32 37 12 9], ⟨0 1 -8 -14 -18 -21 -5 -3]]

Optimal tunings:

  • WE: ~2 = 1201.3140 ¢, ~3/2 = 703.4860 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 702.6578 ¢

Optimal ET sequence: 12f, 29g, 41g

Badness (Sintel): 1.02

Helenus

Subgroup: 2.3.5.7.11

Comma list: 99/98, 176/175, 3125/3087

Mapping: [⟨1 0 15 25 51], ⟨0 1 -8 -14 -30]]

Optimal tunings:

  • WE: ~2 = 1199.7097 ¢, ~3/2 = 701.5554 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7370 ¢

Minimax tuning:

  • 11-odd-limit: ~3/2 = [19/32 1/16 0 0 -1/32⟩
unchanged-interval (eigenmonzo) basis: 2.11/9

Optimal ET sequence: 12, 41e, 53, 118d

Badness (Sintel): 1.18

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 99/98, 176/175, 275/273, 847/845

Mapping: [⟨1 0 15 25 51 56], ⟨0 1 -8 -14 -30 -33]]

Optimal tunings:

  • WE: ~2 = 1199.7370 ¢, ~3/2 = 701.5937 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7570 ¢

Minimax tuning:

  • 13- and 15-odd-limit: ~3/2 = [19/32 1/16 0 0 -1/32⟩
unchanged-interval (eigenmonzo) basis: 2.11/9

Optimal ET sequence: 12f, …, 41ef, 53, 118d

Badness (Sintel): 1.09

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 99/98, 120/119, 176/175, 275/273, 442/441

Mapping: [⟨1 0 15 25 51 56 -7], ⟨0 1 -8 -14 -30 -33 7]]

Optimal tunings:

  • WE: ~2 = 1199.2895 ¢, ~3/2 = 701.2643 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.6967 ¢

Optimal ET sequence: 12f, 53, 65d, 118dg

Badness (Sintel): 1.21

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 99/98, 120/119, 176/175, 190/189, 209/208, 247/245

Mapping: [⟨1 0 15 25 51 56 -7 9], ⟨0 1 -8 -14 -30 -33 7 -3]]

Optimal tunings:

  • WE: ~2 = 1199.5280 ¢, ~3/2 = 701.4290 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7149 ¢

Optimal ET sequence: 12f, 53, 65d

Badness (Sintel): 1.18

Karadeniz

See also: Turkish maqam music temperaments § Karadeniz temperament

Subgroup: 2.3.5.7.11

Comma list: 225/224, 243/242, 3125/3087

Mapping: [⟨1 1 7 11 2], ⟨0 2 -16 -28 5]]

mapping generators: ~2, ~11/9

Optimal tunings:

  • WE: ~2 = 1199.7351 ¢, ~11/9 = 350.9167 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/9 = 350.9995 ¢

Optimal ET sequence: 24d, 41, 65d, 106, 147

Badness (Sintel): 1.37

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 225/224, 243/242, 325/324, 640/637

Mapping: [⟨1 1 7 11 2 -8], ⟨0 2 -16 -28 5 40]]

Optimal tunings:

  • WE: ~2 = 1199.3042 ¢, ~11/9 = 350.7533 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/9 = 350.9686 ¢

Optimal ET sequence: 24d, 41, 65d, 106f

Badness (Sintel): 1.34

Hemigari

Subgroup: 2.3.5.7.11

Comma list: 121/120, 225/224, 3125/3087

Mapping: [⟨1 0 15 25 9], ⟨0 2 -16 -28 -7]]

mapping generators: ~2, ~110/63

Optimal tunings:

  • WE: ~2 = 1200.7303 ¢, ~110/63 = 951.6605 ¢
  • CWE: ~2 = 1200.0000 ¢, ~110/63 = 951.0604 ¢

Optimal ET sequence: 24d, 29, 53, 82e, 135ee

Badness (Sintel): 1.68

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 121/120, 169/168, 225/224, 275/273

Mapping: [⟨1 0 15 25 9 14], ⟨0 2 -16 -28 -7 -13]]

Optimal tunings:

  • WE: ~2 = 1200.8146 ¢, ~26/15 = 951.7273 ¢
  • CWE: ~2 = 1200.0000 ¢, ~26/15 = 951.0574 ¢

Optimal ET sequence: 24d, 29, 53, 82e, 135eef

Badness (Sintel): 1.13

Sanjaab

Subgroup: 2.3.5.7.11

Comma list: 225/224, 1331/1323, 3125/3087

Mapping: [⟨1 2 -1 -3 0], ⟨0 -3 24 42 25]]

mapping generators: ~2, ~11/10

Optimal tunings:

  • WE: ~2 = 1200.1997 ¢, ~11/10 = 166.0018 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 165.9786 ¢

Optimal ET sequence: 29, 65d, 94

Badness (Sintel): 1.92

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 225/224, 275/273, 847/845, 1331/1323

Mapping: [⟨1 2 -1 -3 0 -1], ⟨0 -3 24 42 25 34]]

Optimal tunings:

  • WE: ~2 = 1200.1224 ¢, ~11/10 = 165.9800 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 165.9659 ¢

Optimal ET sequence: 29, 65d, 94

Badness (Sintel): 1.40

Pontiac

Main article: Pontiac

Pontiac tempers out the ragisma, rendering a very accurate 7-limit microtemperament. The 7/4 is found at +39 fifths, represented by the quintuple-augmented third (C-E𝄪𝄪♯), or triple-up major sixth (C-^3A).

Subgroup: 2.3.5.7

Comma list: 4375/4374, 32805/32768

Mapping: [⟨1 0 15 -59], ⟨0 1 -8 39]]

Optimal tunings:

  • WE: ~2 = 1200.0989 ¢, ~3/2 = 701.8145 ¢
error map: ⟨+0.099 -0.042 -0.138 -0.038]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7579 ¢
error map: ⟨0.000 -0.197 -0.377 -0.268]

Minimax tuning:

[[1 0 0 0⟩, [74/47 0 -1/47 1/47⟩, [113/47 0 8/47 -8/47⟩, [113/47 0 -39/47 39/47⟩]
unchanged-interval (eigenmonzo) basis: 2.7/5
[[1 0 0 0⟩, [3/2 1/5 -1/10 0⟩, [3 -8/5 4/5 0⟩, [-1/2 39/5 -39/10 0⟩]
unchanged-interval (eigenmonzo) basis: 2.9/5

Tuning ranges:

Optimal ET sequence: 53, 118, 171, 1592c, 1763c, …, 2960cd, 3131bcd

Badness (Sintel): 0.358

Helenoid

Helenoid may be described as 53 & 118, and is closely related to the helenus temperament, differing only by the mapping of 7.

Subgroup: 2.3.5.7.11

Comma list: 385/384, 3388/3375, 4375/4374

Mapping: [⟨1 0 15 -59 51], ⟨0 1 -8 39 -30]]

Optimal tunings:

  • WE: ~2 = 1200.3277 ¢, ~3/2 = 701.9135 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7223 ¢

Minimax tuning:

  • 11-odd-limit: ~3/2 = [41/69 0 0 1/69 -1/69⟩
unchanged-interval (eigenmonzo) basis: 2.11/7

Optimal ET sequence: 53, 118, 289e, 407de

Badness (Sintel): 1.28

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 385/384, 625/624, 729/728

Mapping: [⟨1 0 15 -59 51 56], ⟨0 1 -8 39 -30 -33]]

Optimal tunings:

  • WE: ~2 = 1200.1780 ¢, ~3/2 = 701.8491 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7446 ¢

Minimax tuning:

  • 13- and 15-odd-limit: ~3/2 = [43/72 0 0 1/72 -1/72⟩
unchanged-interval (eigenmonzo) basis: 2.13/7

Optimal ET sequence: 53, 118, 171e

Badness (Sintel): 1.39

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 352/351, 385/384, 561/560, 625/624, 729/728

Mapping: [⟨1 0 15 -59 51 56 -91], ⟨0 1 -8 39 -30 -33 60]]

Optimal tunings:

  • WE: ~2 = 1200.1645 ¢, ~3/2 = 701.8385 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7425 ¢

Minimax tuning:

  • 17-odd-limit: ~3/2 = [18/31 0 0 0 0 -1/93 1/93⟩
unchanged-interval (eigenmonzo) basis: 2.17/13

Optimal ET sequence: 53, 118, 171e

Badness (Sintel): 1.47

Helena

Subgroup: 2.3.5.7.11.13

Comma list: 169/168, 325/324, 385/384, 3146/3125

Mapping: [⟨1 0 15 -59 51 -28], ⟨0 1 -8 39 -30 20]]

Optimal tunings:

  • WE: ~2 = 1200.5227 ¢, ~3/2 = 702.0456 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7418 ¢

Optimal ET sequence: 53, 118f, 171ef

Badness (Sintel): 1.50

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 169/168, 273/272, 325/324, 385/384, 3146/3125

Mapping: [⟨1 0 15 -59 51 -28 -91], ⟨0 1 -8 39 -30 20 60]]

Optimal tunings:

  • WE: ~2 = 1200.4988 ¢, ~3/2 = 702.0218 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7332 ¢

Optimal ET sequence: 53, 118f, 171ef

Badness (Sintel): 1.56

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 169/168, 273/272, 286/285, 325/324, 385/384, 627/625

Mapping: [⟨1 0 15 -59 51 -28 -91 9], ⟨0 1 -8 39 -30 20 60 -3]]

Optimal tunings:

  • WE: ~2 = 1200.5185 ¢, ~3/2 = 702.0323 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7318 ¢

Optimal ET sequence: 53, 118f, 171ef

Badness (Sintel): 1.33

Ponta

Ponta tempers out 540/539 and may be described as 171 & 224. 224edo itself makes for an excellent tuning.

Subgroup: 2.3.5.7.11

Comma list: 540/539, 4375/4374, 32805/32768

Mapping: [⟨1 0 15 -59 135], ⟨0 1 -8 39 -83]]

Optimal tunings:

  • WE: ~2 = 1199.9814 ¢, ~3/2 = 701.7725 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7834 ¢

Minimax tuning:

  • 11-odd-limit: ~3/2 = [36/61 0 0 1/122 -1/122⟩
unchanged-interval (eigenmonzo) basis: 2.11/7

Optimal ET sequence: 53, 171, 224

Badness (Sintel): 1.61

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 625/624, 729/728, 2200/2197

Mapping: [⟨1 0 15 -59 135 56], ⟨0 1 -8 39 -83 -33]]

Optimal tunings:

  • WE: ~2 = 1199.9601 ¢, ~3/2 = 701.7610 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7845 ¢

Minimax tuning:

  • 13 and 15-odd-limit: ~3/2 = [36/61 0 0 1/122 -1/122⟩
unchanged-interval (eigenmonzo) basis: 2.11/7

Optimal ET sequence: 53, 171, 224

Badness (Sintel): 0.976

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 375/374, 540/539, 625/624, 729/728, 2200/2197

Mapping: [⟨1 0 15 -59 135 56 -91], ⟨0 1 -8 39 -83 -33 60]]

Optimal tunings:

  • WE: ~2 = 1199.8850 ¢, ~3/2 = 701.7101 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7775 ¢

Minimax tuning:

  • 17-odd-limit: ~3/2 = [83/143 0 0 0 -1/143 0 1/143⟩
unchanged-interval (eigenmonzo) basis: 2.17/11

Optimal ET sequence: 53, 171, 224, 395e, 619eg

Badness (Sintel): 1.16

Pontic

Pontic temperament tempers out 441/440 and may be described as 118 & 171. 289edo may be recommended as a tuning.

Subgroup: 2.3.5.7.11

Comma list: 441/440, 4375/4374, 32805/32768

Mapping: [⟨1 0 15 -59 -136], ⟨0 1 -8 39 88]]

Optimal tunings:

  • WE: ~2 = 1200.1259 ¢, ~3/2 = 701.7980 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7256 ¢

Minimax tuning:

  • 11-odd-limit: ~3/2 = [6/11 0 0 0 1/88⟩
unchanged-interval (eigenmonzo) basis: 2.11

Optimal ET sequence: 53e, 118, 289, 407d

Badness (Sintel): 1.64

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 441/440, 625/624, 729/728, 3584/3575

Mapping: [⟨1 0 15 -59 -136 56], ⟨0 1 -8 39 88 -33]]

Optimal tunings:

  • WE: ~2 = 1199.9254 ¢, ~3/2 = 701.6945 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7378 ¢

Minimax tuning:

  • 13 and 15-odd-limit: ~3/2 = [71/121 0 0 0 1/121 -1/121⟩
unchanged-interval (eigenmonzo) basis: 2.13/11

Optimal ET sequence: 53e, 118, 171, 289f

Badness (Sintel): 1.87

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 441/440, 595/594, 625/624, 729/728, 2880/2873

Mapping: [⟨1 0 15 -59 -136 56 -91], ⟨0 1 -8 39 88 -33 60]]

Optimal tunings:

  • WE: ~2 = 1199.9454 ¢, ~3/2 = 701.7085 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7401 ¢

Minimax tuning:

  • 17-odd-limit: ~3/2 = [71/121 0 0 0 1/121 -1/121⟩
unchanged-interval (eigenmonzo) basis: 2.13/11

Optimal ET sequence: 53e, 118, 171, 289f

Badness (Sintel): 1.51

Pontoid

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 441/440, 4375/4374, 32805/32768

Mapping: [⟨1 0 15 -59 -136 -215], ⟨0 1 -8 39 88 138]]

Optimal tunings:

  • WE: ~2 = 1200.0897 ¢, ~3/2 = 701.7874 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7356 ¢

Optimal ET sequence: 53ef, 118f, 171, 289

Badness (Sintel): 2.07

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 364/363, 441/440, 595/594, 1156/1155, 32805/32768

Mapping: [⟨1 0 15 -59 -136 -215 -91], ⟨0 1 -8 39 88 138 60]]

Optimal tunings:

  • WE: ~2 = 1200.1045 ¢, ~3/2 = 701.7962 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7359 ¢

Optimal ET sequence: 53ef, 118f, 171, 289, 460e, 749defg

Badness (Sintel): 1.50

Bipont

Bipont tempers out the lehmerisma (3025/3024) and the kalisma (9801/9800). It may be described as 118 & 224. It has a period of half octave and a ploidacot signature of diploid monocot. 342edo may be recommended as a tuning.

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 4375/4374, 32805/32768

Mapping: [⟨2 0 30 -118 -85], ⟨0 1 -8 39 29]]

mapping generators: ~99/70, ~3

Optimal tunings:

  • WE: ~99/70 = 600.0500 ¢, ~3/2 = 701.8153 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.7584 ¢

Optimal ET sequence: 106, 118, 224, 342, 1592c, 1934ce, 2276cde, 2618cde, 2960cde

Badness (Sintel): 0.484

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 625/624, 729/728, 1575/1573, 4096/4095

Mapping: [⟨2 0 30 -118 -85 112], ⟨0 1 -8 39 29 -33]]

Optimal tunings:

  • WE: ~99/70 = 599.9939 ¢, ~3/2 = 701.7657 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.7728 ¢

Optimal ET sequence: 106, 118, 224, 566f, 790f

Badness (Sintel): 1.25

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 625/624, 729/728, 1089/1088, 1225/1224, 2880/2873

Mapping: [⟨2 0 30 -118 -85 112 -182], ⟨0 1 -8 39 29 -33 60]]

Optimal tunings:

  • WE: ~99/70 = 599.9839 ¢, ~3/2 = 701.7463 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.7649 ¢

Optimal ET sequence: 106g, 118, 224, 342, 566f

Badness (Sintel): 1.38

Counterbipont

Subgroup: 2.3.5.7.11.13

Comma list: 1716/1715, 2080/2079, 3025/3024, 32805/32768

Mapping: [⟨2 0 30 -118 -85 -243], ⟨0 1 -8 39 29 79]]

Optimal tunings:

  • WE: ~99/70 = 600.0405 ¢, ~3/2 = 701.8160 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.7697 ¢

Optimal ET sequence: 106f, 118f, 224, 342f, 566, 1356cf

Badness (Sintel): 1.06

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 715/714, 936/935, 1089/1088, 1225/1224, 32805/32768

Mapping: [⟨2 0 30 -118 -85 -243 -182], ⟨0 1 -8 39 29 79 60]]

Optimal tunings:

  • WE: ~99/70 = 600.0336 ¢, ~3/2 = 701.8031 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.7647 ¢

Optimal ET sequence: 106fg, 118f, 224, 342f, 566

Badness (Sintel): 1.29

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 715/714, 936/935, 1089/1088, 1225/1224, 1540/1539, 4875/4864

Mapping: [⟨2 0 30 -118 -85 -243 -182 -169], ⟨0 1 -8 39 29 79 60 56]]

Optimal tunings:

  • WE: ~99/70 = 600.0243 ¢, ~3/2 = 701.7891 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.7613 ¢

Optimal ET sequence: 106fgh, 118f, 224, 342f, 566h, 908fgh

Badness (Sintel): 1.35

Quadrapont

Subgroup: 2.3.5.7.11.13

Comma list: 3025/3024, 4225/4224, 4375/4374, 32805/32768

Mapping: [⟨4 0 60 -236 -170 -131], ⟨0 1 -8 39 29 23]]

mapping generators: ~208/175, ~3

Optimal tunings:

  • WE: ~208/175 = 300.0229 ¢, ~3/2 = 701.8097 ¢
  • CWE: ~208/175 = 300.0000 ¢, ~3/2 = 701.7578 ¢

Optimal ET sequence: 224, 460, 684, 2276cde, 2960cde

Badness (Sintel): 0.869

Grackle

Grackle tempers out [-44 26 0 1⟩ so 7/4 is found at -26 fifths, represented by the triple-diminished ninth (C–D𝄫𝄫) or double-down minor seventh (C–vvB♭). Two comma steps are required to bend the Pythagorean minor seventh to the septimal one.

Subgroup: 2.3.5.7

Comma list: 126/125, 32805/32768

Mapping: [⟨1 0 15 44], ⟨0 1 -8 -26]]

mapping generators: ~2, ~3

Optimal tunings:

  • WE: ~2 = 1199.7974 ¢, ~3/2 = 701.1210 ¢
error map: ⟨-0.203 -1.037 +3.300 -1.618]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.2465 ¢
error map: ⟨0.000 -0.709 +3.715 -1.234]

Minimax tuning:

  • 7-odd-limit unchanged-interval (eigenmonzo) basis: 2.7/3
  • 9-odd-limit unchanged-interval (eigenmonzo) basis: 2.9/7

Optimal ET sequence: 12, …, 65, 77, 166c

Badness (Sintel): 1.78

11-limit

Subgroup: 2.3.5.7.11

Comma list: 126/125, 176/175, 32805/32768

Mapping: [⟨1 0 15 44 70], ⟨0 1 -8 -26 -42]]

Optimal tunings:

  • WE: ~2 = 1199.7077 ¢, ~3/2 = 701.0017 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.1804 ¢

Optimal ET sequence: 12, 65e, 77, 89, 166c

Badness (Sintel): 1.62

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 176/175, 196/195, 5445/5408

Mapping: [⟨1 0 15 44 70 75], ⟨0 1 -8 -26 -42 -45]]

Optimal tunings:

  • WE: ~2 = 1199.7782 ¢, ~3/2 = 701.0966 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.2319 ¢

Optimal ET sequence: 12f, 65ef, 77, 166cf

Badness (Sintel): 1.56

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 126/125, 176/175, 196/195, 256/255, 2904/2873

Mapping: [⟨1 0 15 44 70 75 -7], ⟨0 1 -8 -26 -42 -45 7]]

Optimal tunings:

  • WE: ~2 = 1199.5839 ¢, ~3/2 = 700.9632 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.2137 ¢

Optimal ET sequence: 12f, 77, 89f, 166cf

Badness (Sintel): 1.52

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 126/125, 171/170, 176/175, 196/195, 209/208, 324/323

Mapping: [⟨1 0 15 44 70 75 -7 9], ⟨0 1 -8 -26 -42 -45 7 -3]]

Optimal tunings:

  • WE: ~2 = 1199.7146 ¢, ~3/2 = 701.0500 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.2212 ¢

Optimal ET sequence: 12f, 77, 166cf

Badness (Sintel): 1.40

Grackloid

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 176/175, 729/728, 1287/1280

Mapping: [⟨1 0 15 44 70 -47], ⟨0 1 -8 -26 -42 32]]

Optimal tunings:

  • WE: ~2 = 1200.0060 ¢, ~3/2 = 701.2202 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.2167 ¢

Optimal ET sequence: 12, 77, 166c

Badness (Sintel): 2.00

Grack

Subgroup: 2.3.5.7.11

Comma list: 126/125, 245/242, 896/891

Mapping: [⟨1 0 15 44 51], ⟨0 1 -8 -26 -30]]

Optimal tunings:

  • WE: ~2 = 1199.8388 ¢, ~3/2 = 701.3071 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.4068 ¢

Optimal ET sequence: 12, 53d, 65, 77e

Badness (Sintel): 1.85

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 126/125, 196/195, 245/242, 832/825

Mapping: [⟨1 0 15 44 51 75], ⟨0 1 -8 -26 -30 -45]]

Optimal tunings:

  • WE: ~2 = 1199.7329 ¢, ~3/2 = 701.1918 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.3555 ¢

Optimal ET sequence: 12f, 53dff, 65f, 77e

Badness (Sintel): 1.84

Catahelenic

Subgroup: 2.3.5.7.11.13

Comma list: 105/104, 126/125, 245/242, 352/351

Mapping: [⟨1 0 15 44 51 56], ⟨0 1 -8 -26 -30 -33]]

Optimal tunings:

  • WE: ~2 = 1199.8928 ¢, ~3/2 = 701.4664 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.5327 ¢

Optimal ET sequence: 12f, …, 53d, 65

Badness (Sintel): 2.01

Quasipyth

Named by Xenllium in 2026, quasipyth tempers out [109 -67 0 -1⟩, the nanisma, as well as the catasyc comma, 390625/387072. The 7/4 is found at −67 fifths, represented by the nonuple-diminished thirteenth.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 390625/387072

Mapping: [⟨1 0 15 109], ⟨0 1 -8 -67]]

Optimal tunings:

  • WE: ~2 = 1200.2569 ¢, ~3/2 = 702.1149 ¢
error map: ⟨+0.2569 +0.4168 -1.4342 +0.2685]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.9615 ¢
error map: ⟨0.0000 +0.0065 -2.0054 -0.2437]

Optimal ET sequence: 53, 147d, 200, 253, 306c, 559c

Badness (Sintel): 5.04

11-limit

Subgroup: 2.3.5.7.11

Comma list: 385/384, 19712/19683, 78125/77616

Mapping: [⟨1 0 15 109 -117], ⟨0 1 -8 -67 76]]

Optimal tunings:

  • WE: ~2 = 1200.3283 ¢, ~3/2 = 702.1636 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.9713 ¢

Optimal ET sequence: 53, 200, 253, 559ce

Badness (Sintel): 3.83

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 325/324, 385/384, 2200/2197, 19712/19683

Mapping: [⟨1 0 15 109 -117 -28], ⟨0 1 -8 -67 76 20]]

Optimal tunings:

  • WE: ~2 = 1200.3229 ¢, ~3/2 = 702.1603 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.9714 ¢

Optimal ET sequence: 53, 200, 253, 559ce

Badness (Sintel): 2.13

Schism

See Archytas clan #Schism.

Schism is a relatively low-accuracy extension as it tempers out the septimal comma. The 7/4 is found at -2 fifths, represented by the minor seventh (C–B♭). 12edo is recommendable tuning, though 29edo (29d val), 41edo (41d val), and 53edo (53d val) can be used.

Bischismic

Bischismic tempers out 3136/3125, the hemimean comma, as well as 321489/320000, the varunisma, and may be described as the 118 & 130 temperament. The octave is split in halves, so the ploidacot of this temperament is diploid monocot. In schismic, -10 fifths make the interval class of 10/9. Bischismic then finds 7/4 by a stack of two 10/9's plus a semi-octave period, and in the 11-limit, it simply finds 11/8 by a stack of three 10/9's. 248edo and 378edo make for excellent tunings in both cases.

Subgroup: 2.3.5.7

Comma list: 3136/3125, 32805/32768

Mapping: [⟨2 0 30 69], ⟨0 1 -8 -20]]

mapping generators: ~567/400, ~3

Optimal tunings:

  • WE: ~567/400 = 600.0072 ¢, ~3/2 = 701.6005 ¢
error map: ⟨+0.014 -0.340 +0.982 -0.629]
  • CWE: ~567/400 = 600.0000 ¢, ~3/2 = 701.5915 ¢
error map: ⟨0.000 -0.364 +0.954 -0.656]

Minimax tuning:

  • 7-odd-limit unchanged-interval (eigenmonzo) basis: 2.7/3
  • 9-odd-limit unchanged-interval (eigenmonzo) basis: 2.9/7

Optimal ET sequence: 12, …, 106d, 118, 130, 248, 378

Badness (Sintel): 1.39

11-limit

Subgroup: 2.3.5.7.11

Comma list: 441/440, 3136/3125, 8019/8000

Mapping: [⟨2 0 30 69 102], ⟨0 1 -8 -20 -30]]

Optimal tunings:

  • WE: ~99/70 = 600.0165 ¢, ~3/2 = 701.6316 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.6110 ¢

Optimal ET sequence: 12, …, 106de, 118, 130, 248

Badness (Sintel): 0.931

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 441/440, 729/728, 1001/1000, 3136/3125

Mapping: [⟨2 0 30 69 102 -75], ⟨0 1 -8 -20 -30 26]]

Optimal tunings:

  • WE: ~99/70 = 599.9610 ¢, ~3/2 = 701.5445 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.5908 ¢

Optimal ET sequence: 12, 118, 130, 248, 378

Badness (Sintel): 1.19

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 289/288, 441/440, 561/560, 729/728, 3136/3125

Mapping: [⟨2 0 30 69 102 -75 5], ⟨0 1 -8 -20 -30 26 1]]

Optimal tunings:

  • WE: ~99/70 = 600.0331 ¢, ~3/2 = 701.6387 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~3/2 = 701.5994 ¢

Optimal ET sequence: 12, 118, 130, 248g

Badness (Sintel): 1.49

Bischis

Subgroup: 2.3.5.7.11.13

Comma list: 351/350, 364/363, 441/440, 3136/3125

Mapping: [⟨2 0 30 69 102 131], ⟨0 1 -8 -20 -30 -39]]

Optimal tunings:

  • WE: ~55/39 = 599.9766 ¢, ~3/2 = 701.5380 ¢
  • CWE: ~55/39 = 600.0000 ¢, ~3/2 = 701.5670 ¢

Optimal ET sequence: 12f, 106deff, 118f, 130

Badness (Sintel): 1.21

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 221/220, 289/288, 351/350, 441/440, 3136/3125

Mapping: [⟨2 0 30 69 102 131 5], ⟨0 1 -8 -20 -30 -39 1]]

Optimal tunings:

  • WE: ~55/39 = 600.0997 ¢, ~3/2 = 701.7114 ¢
  • CWE: ~55/39 = 600.0000 ¢, ~3/2 = 701.5899 ¢

Optimal ET sequence: 12f, 106deff, 118f, 130, 248fg

Badness (Sintel): 1.37

Kleischismic

Kleischismic tempers out 1500625/1492992, the uniwiz comma, and may be described as the 94 & 118 temperament. The generator is a infrafifth, two of which plus a semi-octave period make the 3rd harmonic; its ploidacot is thus diploid alpha-dicot. In schismic, 10 fifths make the interval class of 9/5. Kleischismic then finds 7/4 by that minus a 36/35 quartertone, which is the aforementioned generator minus a semi-octave period. The generator stands in for 16/11 and the quartertone stands in for 33/32 in the 11-limit. 212edo and 330edo in the 330e val may be recommended as tunings.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 1500625/1492992

Mapping: [⟨2 1 22 -15], ⟨0 2 -16 19]]

mapping generators: ~1225/864, ~35/24

Optimal tunings:

  • WE: ~1225/864 = 600.1246 ¢, ~35/24 = 651.0550 ¢ (~36/35 = 50.9304 ¢)
error map: ⟨+0.249 +0.280 -0.453 -0.650]
  • CWE: ~1225/864 = 600.0000 ¢, ~35/24 = 650.9204 ¢ (~36/35 = 50.9204 ¢)
error map: ⟨0.000 -0.114 -1.041 -1.338]

Optimal ET sequence: 24, 94, 118, 212, 330, 542d, 872cdd, 1414ccddd

Badness (Sintel): 2.80

11-limit

Subgroup: 2.3.5.7.11

Comma list: 385/384, 9801/9800, 14641/14580

Mapping: [⟨2 1 22 -15 8], ⟨0 2 -16 19 -1]]

Optimal tunings:

  • WE: ~99/70 = 600.1645 ¢, ~35/24 = 651.0963 ¢ (~36/35 = 50.9319 ¢)
  • CWE: ~99/70 = 600.0000 ¢, ~35/24 = 650.9184 ¢ (~36/35 = 50.9184 ¢)

Optimal ET sequence: 24, 94, 118, 212, 330e, 542dee, 872cddeee

Badness (Sintel): 1.21

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 385/384, 729/728, 1575/1573

Mapping: [⟨2 1 22 -15 8 15], ⟨0 2 -16 19 -1 -7]]

Optimal tunings:

  • WE: ~99/70 = 600.0696 ¢, ~35/24 = 651.0136 ¢ (~36/35 = 50.9440 ¢)
  • CWE: ~99/70 = 600.0000 ¢, ~35/24 = 650.9378 ¢ (~36/35 = 50.9378 ¢)

Optimal ET sequence: 24, 94, 118, 212f

Badness (Sintel): 1.56

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 170/169, 289/288, 352/351, 385/384, 561/560

Mapping: [⟨2 1 22 -15 8 15 6], ⟨0 2 -16 19 -1 -7 2]]

Optimal tunings:

  • WE: ~99/70 = 600.1134 ¢, ~35/24 = 651.0646 ¢ (~36/35 = 50.9512 ¢)
  • CWE: ~99/70 = 600.0000 ¢, ~35/24 = 650.9414 ¢ (~36/35 = 50.9414 ¢)

Optimal ET sequence: 24, 94, 118

Badness (Sintel): 1.30

Kleischis

Subgroup: 2.3.5.7.11.13

Comma list: 325/324, 385/384, 1573/1568, 14641/14580

Mapping: [⟨2 1 22 -15 8 -36], ⟨0 2 -16 19 -1 40]]

Optimal tunings:

  • WE: ~99/70 = 600.1909 ¢, ~35/24 = 651.1578 ¢ (~36/35 = 50.9670 ¢)
  • CWE: ~99/70 = 600.0000 ¢, ~35/24 = 650.9541 ¢ (~36/35 = 50.9541 ¢)

Optimal ET sequence: 24f, 94, 118f, 212

Badness (Sintel): 1.55

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 289/288, 325/324, 385/384, 442/441, 14641/14580

Mapping: [⟨2 1 22 -15 8 -36 6], ⟨0 2 -16 19 -1 40 2]]

Optimal tunings:

  • WE: ~99/70 = 600.2190 ¢, ~35/24 = 651.1578 ¢ (~36/35 = 50.9670 ¢)
  • CWE: ~99/70 = 600.0000 ¢, ~35/24 = 650.9518 ¢ (~36/35 = 50.9518 ¢)

Optimal ET sequence: 24f, 94, 118f, 212g

Badness (Sintel): 1.26

Salsa

Salsa tempers out 245/243, the sensamagic comma, and may be described as the 41 & 65 temperament. It has a neutral third as a generator; its ploidacot is dicot. In fact it is related to hemififths, from which this less accurate temperament only differs by the mapping of 5.

Subgroup: 2.3.5.7

Comma list: 245/243, 32805/32768

Mapping: [⟨1 1 7 -1], ⟨0 2 -16 13]]

mapping generators: ~2, ~128/105

Optimal tunings:

  • WE: ~2 = 1200.7707 ¢, ~128/105 = 351.2748 ¢
error map: ⟨+0.771 +1.365 -1.315 -3.024]
  • CWE: ~2 = 1200.0000 ¢, ~128/105 = 351.0471 ¢
error map: ⟨0.000 +0.139 -3.068 -5.213]

Optimal ET sequence: 17, 24, 41, 106d, 147d, 188cd

Badness (Sintel): 2.03

11-limit

Subgroup: 2.3.5.7.11

Comma list: 243/242, 245/242, 385/384

Mapping: [⟨1 1 7 -1 2], ⟨0 2 -16 13 5]]

Optimal tunings:

  • WE: ~2 = 1200.3891 ¢, ~11/9 = 351.1275 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/9 = 351.0141 ¢

Optimal ET sequence: 17, 24, 41, 106d

Badness (Sintel): 1.30

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 105/104, 144/143, 243/242, 245/242

Mapping: [⟨1 1 7 -1 2 4], ⟨0 2 -16 13 5 -1]]

Optimal tunings:

  • WE: ~2 = 1199.9362 ¢, ~11/9 = 351.0061 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/9 = 351.0247 ¢

Optimal ET sequence: 17, 24, 41

Badness (Sintel): 1.27

Hemischis

Hemischis tempers out 6144/6125, the porwell comma, as well as 19683/19600, the cataharry comma, and may be described as the 53 & 130 temperament. Its ploidacot is alpha-dicot.

The S-expression-based comma list for 13-limit hemischis is {S12/S14, S13/S15 = S26, S27, S64, (S65)}. Tempering out 169/168 (S13), 225/224 (S15) or 625/624 (S25) leads to 53edo while tempering out 24192/24167 (S12/S13), 10985/10976 (S13/S14), 43904/43875 (S14/S15) or 2401/2400 (S49) leads to 130edo and implies S12, S13, S14, and S15 are tempered together.

Subgroup: 2.3.5.7

Comma list: 6144/6125, 19683/19600

Mapping: [⟨1 0 15 -17], ⟨0 2 -16 25]]

mapping generators: ~2, ~140/81

Optimal tunings:

  • WE: ~2 = 1199.8579 ¢, ~140/81 = 951.6847 ¢
error map: ⟨-0.142 -0.586 +0.600 +0.708]
  • CWE: ~2 = 1200.0000 ¢, ~140/81 = 951.7966 ¢
error map: ⟨0.000 -0.362 +0.941 +1.088]

Optimal ET sequence: 24, 53, 130, 183, 313

Badness (Sintel): 1.16

11-limit

Subgroup: 2.3.5.7.11

Comma list: 540/539, 5632/5625, 8019/8000

Mapping: [⟨1 0 15 -17 51], ⟨0 2 -16 25 -60]]

Optimal tunings:

  • WE: ~2 = 1199.8482 ¢, ~140/81 = 950.6809 ¢
  • CWE: ~2 = 1200.0000 ¢, ~140/81 = 950.8020 ¢

Optimal ET sequence: 53, 130, 183, 313, 809cd

Badness (Sintel): 1.20

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 351/350, 540/539, 676/675, 4096/4095

Mapping: [⟨1 0 15 -17 51 14], ⟨0 2 -16 25 -60 -13]]

Optimal tunings:

  • WE: ~2 = 1199.9140 ¢, ~140/81 = 950.7324 ¢
  • CWE: ~2 = 1200.0000 ¢, ~140/81 = 950.8010 ¢

Optimal ET sequence: 53, 130, 183, 313

Badness (Sintel): 0.860

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 351/350, 442/441, 561/560, 676/675, 4096/4095

Mapping: [⟨1 0 15 -17 51 14 -49], ⟨0 2 -16 25 -60 -13 67]]

Optimal tunings:

  • WE: ~2 = 1199.9740 ¢, ~26/15 = 950.7894 ¢
  • CWE: ~2 = 1200.0000 ¢, ~26/15 = 950.8100 ¢

Optimal ET sequence: 53, 130, 183, 496d

Badness (Sintel): 1.07

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 351/350, 442/441, 456/455, 561/560, 676/675, 4096/4095

Mapping: [⟨1 0 15 -17 51 14 -49 9], ⟨0 2 -16 25 -60 -13 67 -6]]

Optimal tunings:

  • WE: ~2 = 1200.0464 ¢, ~26/15 = 950.8459 ¢
  • CWE: ~2 = 1200.0000 ¢, ~26/15 = 950.8091 ¢

Optimal ET sequence: 53, 130, 183, 313h

Badness (Sintel): 1.11

23-limit

Subgroup: 2.3.5.7.11.13.17.19.23

Comma list: 351/350, 442/441, 456/455, 561/560, 676/675, 736/735, 4096/4095

Mapping: [⟨1 0 15 -17 51 14 -49 9 -24], ⟨0 2 -16 25 -60 -13 67 -6 36]]

Optimal tunings:

  • WE: ~2 = 1200.0215 ¢, ~26/15 = 950.8239 ¢
  • CWE: ~2 = 1200.0000 ¢, ~26/15 = 950.8069 ¢

Optimal ET sequence: 53, 130, 183, 313h

Badness (Sintel): 1.06

Music

Term

Term tempers out the landscape comma, mapping 63/50 to the 1/3-octave period. It can be described as 12 & 171, and is the unique temperament that equates a syntonic~Pythagorean comma with a stack of three marvel commas. A septimal comma is then found as a stack of four marvel commas. In some 7-limit adaptive-tuning practice, the marvel comma corresponds to a melodic unit called a kleisma, with three kleismas making a comma, so this temperament may be useful for modeling that. 171edo makes for an excellent tuning.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 250047/250000

Mapping: [⟨3 0 45 94], ⟨0 1 -8 -18]]

mapping generators: ~63/50, ~3

Optimal tunings:

  • WE: ~63/50 = 400.0257 ¢, ~3/2 = 701.7873 ¢
error map: ⟨+0.077 -0.091 -0.072 +0.031]
  • CWE: ~63/50 = 400.0000 ¢, ~3/2 = 701.7383 ¢
error map: ⟨0.000 -0.217 -0.220 -0.115]

Minimax tuning:

Optimal ET sequence: 12, …, 159, 171, 867, 1038, 1209, 1380, 1551, 1722

Badness (Sintel): 0.505

Terminal

Terminal tempers out 441/440 and 4375/4356, and may be described as 159 & 171. In this temperament, 44/35 and 63/50 are represented as one period of 1/3 octave.

Subgroup: 2.3.5.7.11

Comma list: 441/440, 4375/4356, 32805/32768

Mapping: [⟨3 0 45 94 134], ⟨0 1 -8 -18 -26]]

Optimal tunings:

  • WE: ~44/35 = 400.0464 ¢, ~3/2 = 701.9053 ¢
  • CWE: ~44/35 = 400.0000 ¢, ~3/2 = 701.8178 ¢

Optimal ET sequence: 12, …, 159, 330

Badness (Sintel): 1.97

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 441/440, 625/624, 13720/13689

Mapping: [⟨3 0 45 94 134 168], ⟨0 1 -8 -18 -26 -33]]

Optimal tunings:

  • WE: ~44/35 = 400.0449 ¢, ~3/2 = 701.8995 ¢
  • CWE: ~44/35 = 400.0000 ¢, ~3/2 = 701.8156 ¢

Optimal ET sequence: 12f, …, 159, 330

Badness (Sintel): 1.53

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 364/363, 375/374, 441/440, 595/594, 8624/8619

Mapping: [⟨3 0 45 94 134 168 -2], ⟨0 1 -8 -18 -26 -33 3]]

Optimal tunings:

  • WE: ~34/27 = 400.0195 ¢, ~3/2 = 701.8439 ¢
  • CWE: ~34/27 = 400.0000 ¢, ~3/2 = 701.8081 ¢

Optimal ET sequence: 12f, 159, 171, 330

Badness (Sintel): 1.38

Terminator

Terminator tempers out 540/539, and may be described as 171 & 183.

Subgroup: 2.3.5.7.11

Comma list: 540/539, 32805/32768, 137781/137500

Mapping: [⟨3 0 45 94 -137], ⟨0 1 -8 -18 31]]

Optimal tunings:

  • WE: ~63/50 = 399.9677 ¢, ~3/2 = 701.6278 ¢
  • CWE: ~63/50 = 400.0000 ¢, ~3/2 = 701.6846 ¢

Optimal ET sequence: 12e, 171, 183, 354, 537, 891de

Badness (Sintel): 2.21

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 729/728, 4096/4095, 31250/31213

Mapping: [⟨3 0 45 94 -137 -103], ⟨0 1 -8 -18 31 24]]

Optimal tunings:

  • WE: ~63/50 = 399.9731 ¢, ~3/2 = 701.6414 ¢
  • CWE: ~63/50 = 400.0000 ¢, ~3/2 = 701.6881 ¢

Optimal ET sequence: 12e, 171, 183, 354, 891de

Badness (Sintel): 1.47

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 540/539, 729/728, 936/935, 1156/1155, 4096/4095

Mapping: [⟨3 0 45 94 -137 -103 -2], ⟨0 1 -8 -18 31 24 3]]

Optimal tunings:

  • WE: ~63/50 = 399.9757 ¢, ~3/2 = 701.6458 ¢
  • CWE: ~63/50 = 400.0000 ¢, ~3/2 = 701.6881 ¢

Optimal ET sequence: 12e, 171, 183, 354, 891de

Badness (Sintel): 1.04

Semiterm

The semiterm temperament tempers out 9801/9800 (kalisma) as well as 151263/151250 (odiheim comma), and may be described as 12 & 342. It has a period of 1/6 octave and its ploidacot is hexaploid monocot.

Subgroup: 2.3.5.7.11

Comma list: 9801/9800, 32805/32768, 151263/151250

Mapping: [⟨6 0 90 188 287], ⟨0 1 -8 -18 -28]]

mapping generators: ~55/49, ~3

Optimal tunings:

  • WE: ~55/49 = 200.0134 ¢, ~3/2 = 701.7931 ¢
  • CWE: ~55/49 = 200.0000 ¢, ~3/2 = 701.7426 ¢

Optimal ET sequence: 12, …, 330e, 342, 1380, 1722, 2064, 2406c, 5154bccdde

Badness (Sintel): 0.973

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 1716/1715, 2080/2079, 32805/32768, 34398/34375

Mapping: [⟨6 0 90 188 287 355], ⟨0 1 -8 -18 -28 -35]]

Optimal tunings:

  • WE: ~55/49 = 200.0083 ¢, ~3/2 = 701.7549 ¢
  • CWE: ~55/49 = 200.0000 ¢, ~3/2 = 701.7238 ¢

Optimal ET sequence: 12f, 330eff, 342f, 696f *

* optimal patent val: 354

Badness (Sintel): 1.85

Hemiterm

The hemiterm temperament tempers out 3025/3024 (lehmerisma), and may be described as 159 & 183. Its ploidacot is triploid alpha-dicot.

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 32805/32768, 102487/102400

Mapping: [⟨3 0 45 94 8], ⟨0 2 -16 -36 1]]

mapping generators: ~63/50, ~693/400

Optimal tunings:

  • WE: ~63/50 = 400.0309 ¢, ~693/400 = 950.9458 ¢ (~12/11 = 150.8841 ¢)
  • CWE: ~63/50 = 400.0000 ¢, ~693/400 = 950.8707 ¢ (~12/11 = 150.8707 ¢)

Optimal ET sequence: 24d, 159, 183, 342, 1209, 1551, 1893e, 2235ce

Badness (Sintel): 0.684

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 676/675, 1001/1000, 3025/3024, 19773/19712

Mapping: [⟨3 0 45 94 8 42], ⟨0 2 -16 -36 1 -13]]

Optimal tunings:

  • WE: ~63/50 = 400.0541 ¢, ~26/15 = 951.0013 ¢ (~12/11 = 150.8932 ¢)
  • CWE: ~63/50 = 400.0000 ¢, ~26/15 = 950.8696 ¢ (~12/11 = 150.8696 ¢)

Optimal ET sequence: 24d, 159, 183, 342f

Badness (Sintel): 1.30

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 676/675, 715/714, 936/935, 1001/1000, 11271/11264

Mapping: [⟨3 0 45 94 8 42 -2], ⟨0 2 -16 -36 1 -13 6]]

Optimal tunings:

  • WE: ~34/27 = 400.0373 ¢, ~26/15 = 950.9556 ¢ (~12/11 = 150.8809 ¢)
  • CWE: ~34/27 = 400.0000 ¢, ~26/15 = 950.8652 ¢ (~12/11 = 150.8652 ¢)

Optimal ET sequence: 24d, 159, 183, 342f, 525f

Badness (Sintel): 1.14

Altinex

Named by Aura in 2021, altinex is an alternative to hemiterm and may be described as 24 & 159. 159edo itself makes for a recommendable tuning.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 367653125/362797056

Mapping: [⟨3 0 45 -32], ⟨0 2 -16 17]]

mapping generators: ~1536/1225, ~34300/19683

Optimal tunings:

  • WE: ~1536/1225 = 400.1360 ¢, ~34300/19683 = 951.2867 ¢
error map: ⟨+0.408 +0.618 -0.781 -1.304]
  • CWE: ~1536/1225 = 400.0000 ¢, ~34300/19683 = 950.9638 ¢
error map: ⟨0.000 -0.027 -1.735 -2.441]

Optimal ET sequence: 24, 135, 159, 612ccdd

Badness (Sintel): 10.7

11-limit

Subgroup: 2.3.5.7.11

Comma list: 385/384, 14700/14641, 19712/19683

Mapping: [⟨3 0 45 -32 8], ⟨0 2 -16 17 1]]

Optimal tunings:

  • WE: ~44/35 = 400.1156 ¢, ~121/70 = 951.2377 ¢
  • CWE: ~44/35 = 400.0000 ¢, ~121/70 = 950.9634 ¢

Optimal ET sequence: 24, 135, 159

Badness (Sintel): 3.35

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 385/384, 676/675, 19712/19683

Mapping: [⟨3 0 45 -32 8 42], ⟨0 2 -16 17 1 -13]]

Optimal tunings:

  • WE: ~44/35 = 400.1396 ¢, ~26/15 = 951.2799 ¢
  • CWE: ~44/35 = 400.0000 ¢, ~26/15 = 950.9462 ¢

Optimal ET sequence: 24, 135f, 159

Badness (Sintel): 2.27

Squirrel

Squirrel tempers out 686/675, the sengic comma, and may be described as 29 & 36. It has a ~11/10 generator, three of which give the fourth (4/3), and thirteen of which give 7/4 with octave reduction. Its ploidacot is omega-tricot.

Subgroup: 2.3.5.7

Comma list: 686/675, 32805/32768

Mapping: [⟨1 2 -1 1], ⟨0 -3 24 13]]

Optimal tunings:

  • WE: ~2 = 1200.7408 ¢, ~160/147 = 166.2424 ¢
error map: ⟨+0.741 +0.799 +2.763 -6.934]
  • CWE: ~2 = 1200.0000 ¢, ~160/147 = 166.1597 ¢
error map: ⟨0.000 -0.434 +1.518 -8.750]

Optimal ET sequence: 29, 36, 65

Badness (Sintel): 4.42

11-limit

Subgroup: 2.3.5.7.11

Comma list: 245/242, 686/675, 896/891

Mapping: [⟨1 2 -1 1 0], ⟨0 -3 24 13 25]]

Optimal tunings:

  • WE: ~2 = 1200.6379 ¢, ~11/10 = 166.1853 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 166.1157 ¢

Optimal ET sequence: 29, 36, 65

Badness (Sintel): 2.26

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 91/90, 169/168, 245/242, 896/891

Mapping: [⟨1 2 -1 1 0 3], ⟨0 -3 24 13 25 5]]

Optimal tunings:

  • WE: ~2 = 1201.1361 ¢, ~11/10 = 166.2110 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 166.0833 ¢

Optimal ET sequence: 29, 65f, 94df

Badness (Sintel): 1.81

Tertiaschis

Named by Xenllium in 2021, tertiaschis may be described as 94 & 159. It has a ~11/10 generator, sharing the same 2.3.5.11 subgroup with squirrel, but tempers out 1071875/1062882 for prime 7.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 1071875/1062882

Mapping: [⟨1 2 -1 10], ⟨0 -3 24 -52]]

Optimal tunings:

  • WE: ~2 = 1200.3627 ¢, ~192/175 = 166.0691 ¢
error map: ⟨+0.363 +0.563 -1.019 -0.790]
  • CWE: ~2 = 1200.0000 ¢, ~192/175 = 166.0172 ¢
error map: ⟨0.000 -0.007 -1.901 -1.720]

Optimal ET sequence: 65, 94, 159, 253, 412cd

Badness (Sintel): 5.36

11-limit

Subgroup: 2.3.5.7.11

Comma list: 385/384, 4000/3993, 19712/19683

Mapping: [⟨1 2 -1 10 0], ⟨0 -3 24 -52 25]]

Optimal tunings:

  • WE: ~2 = 1200.3379 ¢, ~11/10 = 166.0638 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 166.0167 ¢

Optimal ET sequence: 65, 94, 159, 253, 412cd, 665ccde

Badness (Sintel): 2.07

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 325/324, 385/384, 1575/1573, 10985/10976

Mapping: [⟨1 2 -1 10 0 12], ⟨0 -3 24 -52 25 -60]]

Optimal tunings:

  • WE: ~2 = 1200.3467 ¢, ~11/10 = 166.0635 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 166.0142 ¢

Optimal ET sequence: 65f, 94, 159, 253, 412cdf, 665ccdef

Badness (Sintel): 1.52

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 325/324, 375/374, 385/384, 595/594, 10985/10976

Mapping: [⟨1 2 -1 10 0 12 -2], ⟨0 -3 24 -52 25 -60 44]]

Optimal tunings:

  • WE: ~2 = 1200.3019 ¢, ~11/10 = 166.0535 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 166.0114 ¢

Optimal ET sequence: 65f, 94, 159, 253

Badness (Sintel): 1.35

Countertertiaschis

Named by Flora Canou in 2021, Countertertiaschis may be described as 159 & 224. It has a ~11/10 generator, sharing the same 2.3.5.11 subgroup with squirrel, but tempers out 244140625/243045684 for prime 7.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 244140625/243045684

Mapping: [⟨1 2 -1 -12], ⟨0 -3 24 107]]

Optimal tunings:

  • WE: ~2 = 1200.1265 ¢, ~625/567 = 166.0797 ¢
error map: ⟨+0.127 +0.059 -0.529 +0.178]
  • CWE: ~2 = 1200.0000 ¢, ~625/567 = 166.0632 ¢
error map: ⟨0.000 -0.145 -0.797 -0.065]

Optimal ET sequence: 65d, 159, 224, 383, 607

Badness (Sintel): 4.76

11-limit

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 4000/3993, 32805/32768

Mapping: [⟨1 2 -1 -12 0], ⟨0 -3 24 107 25]]

Optimal tunings:

  • WE: ~2 = 1200.0804 ¢, ~11/10 = 166.0739 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 166.0634 ¢

Optimal ET sequence: 65d, 159, 224, 383, 607

Badness (Sintel): 1.62

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 625/624, 1575/1573, 2080/2079, 10985/10976

Mapping: [⟨1 2 -1 -12 0 -10], ⟨0 -3 24 107 25 99]]

Optimal tunings:

  • WE: ~2 = 1200.0805 ¢, ~11/10 = 166.0740 ¢
  • CWE: ~2 = 1200.0000 ¢, ~11/10 = 166.0635 ¢

Optimal ET sequence: 65d, 159, 224, 383, 607

Badness (Sintel): 1.01

Quadrant

Named by Xenllium in 2021, quadrant tempers out 390625/388962, the dimcomp comma, and maps 25/21 to the 1/4-octave period. It may be described as the 12 & 212 temperament; its ploidacot is tetraploid monocot. Just as term equates the syntonic~Pythagorean comma with three marvel commas, quadrant equates the syntonic~Pythagorean comma with four. A septimal comma is then found as a stack of five marvel commas.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 390625/388962

Mapping: [⟨4 0 60 119], ⟨0 1 -8 -17]]

mapping generators: ~25/21, ~3

Optimal tunings:

  • WE: ~2 = 300.0255 ¢, ~3/2 = 701.8831 ¢
error map: ⟨+0.102 +0.030 -0.664 +0.462]
  • CWE: ~2 = 300.0000 ¢, ~3/2 = 701.8180 ¢
error map: ⟨0.000 -0.137 -0.858 +0.268]

Optimal ET sequence: 12, …, 200, 212, 224, 436, 660

Badness (Sintel): 2.79

11-limit

Subgroup: 2.3.5.7.11

Comma list: 1375/1372, 6250/6237, 32805/32768

Mapping: [⟨4 0 60 119 185], ⟨0 1 -8 -17 -27]]

Optimal tunings:

  • WE: ~25/21 = 300.0244 ¢, ~3/2 = 701.8759 ¢
  • CWE: ~25/21 = 300.0000 ¢, ~3/2 = 701.8145 ¢

Optimal ET sequence: 12, …, 212, 224, 436, 660

Badness (Sintel): 1.51

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 625/624, 1375/1372, 2080/2079, 10648/10647

Mapping: [⟨4 0 60 119 185 224], ⟨0 1 -8 -17 -27 -33]]

Optimal tunings:

  • WE: ~25/21 = 300.0234 ¢, ~3/2 = 701.8707 ¢
  • CWE: ~25/21 = 300.0000 ¢, ~3/2 = 701.8123 ¢

Optimal ET sequence: 12f, …, 212, 224, 436, 660

Badness (Sintel): 1.13

Sesquiquartififths

Sesquiquartififths tempers out 2401/2400, the breedsma, and may be described as the 41 & 171 temperament. It splits the fifth into four; its ploidacot is thus tetracot.

Subgroup: 2.3.5.7

Comma list: 2401/2400, 32805/32768

Mapping: [⟨1 1 7 5], ⟨0 4 -32 -15]]

mapping generators: ~2, ~448/405

Optimal tunings:

  • WE: ~2 = 1200.0846 ¢, ~448/405 = 175.4460 ¢
error map: ⟨+0.085 -0.086 +0.007 -0.093]
  • CWE: ~2 = 1200.0000 ¢, ~448/405 = 175.4320 ¢
error map: ⟨0.000 -0.227 -0.137 -0.306]

Minimax tuning:

Optimal ET sequence: 41, 89, 130, 171, 814, 985, 1156, 1327, 1498, 2825bd

Badness (Sintel): 0.285

Sesquart

Sesquart is the main 11- and 13-limit extension of sesquiquartififths of practical interest, as it identifies the neutral third with 11/9, which is realized in 41edo, 89edo, 130edo, and 171edo also makes for a possible tuning.

Subgroup: 2.3.5.7.11

Comma list: 243/242, 441/440, 16384/16335

Mapping: [⟨1 1 7 5 2], ⟨0 4 -32 -15 10]]

Optimal tunings:

  • WE: ~2 = 1199.8171 ¢, ~256/231 = 175.3793 ¢
  • CWE: ~2 = 1200.0000 ¢, ~256/231 = 175.4081 ¢

Optimal ET sequence: 41, 89, 130, 301e, 431e

Badness (Sintel): 0.969

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 243/242, 364/363, 441/440, 3584/3575

Mapping: [⟨1 1 7 5 2 -2], ⟨0 4 -32 -15 10 39]]

Optimal tunings:

  • WE: ~2 = 1199.8352 ¢, ~72/65 = 175.3852 ¢
  • CWE: ~2 = 1200.0000 ¢, ~72/65 = 175.4095 ¢

Optimal ET sequence: 41, 89, 130, 301e, 431e

Badness (Sintel): 0.925

Heartia

Subgroup: 2.3.5.7.11.13.17

Comma list: 243/242, 256/255, 273/272, 364/363, 441/440

Mapping: [⟨1 1 7 5 2 -2 0], ⟨0 4 -32 -15 10 39 28]]

Optimal tunings:

  • WE: ~2 = 1199.6422 ¢, ~72/65 = 175.3338 ¢
  • CWE: ~2 = 1200.0000 ¢, ~72/65 = 175.3857 ¢

Optimal ET sequence: 41, 89, 130g

Badness (Sintel): 1.45

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 171/170, 243/242, 256/255, 273/272, 324/323, 441/440

Mapping: [⟨1 1 7 5 2 -2 0 6], ⟨0 4 -32 -15 10 39 28 -12]]

Optimal tunings:

  • WE: ~2 = 1199.7499 ¢, ~21/19 = 175.3432 ¢
  • CWE: ~2 = 1200.0000 ¢, ~21/19 = 175.3797 ¢

Optimal ET sequence: 41, 89, 130g

Badness (Sintel): 1.40

Sesquartia

Subgroup: 2.3.5.7.11.13.17

Comma list: 243/242, 364/363, 441/440, 595/594, 3584/3575

Mapping: [⟨1 1 7 5 2 -2 -6], ⟨0 4 -32 -15 10 39 69]]

Optimal tunings:

  • WE: ~2 = 1199.8902 ¢, ~72/65 = 175.4077 ¢
  • CWE: ~2 = 1200.0000 ¢, ~72/65 = 175.4234 ¢

Optimal ET sequence: 41, 130, 171

Badness (Sintel): 1.18

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 243/242, 361/360, 364/363, 441/440, 456/455, 595/594

Mapping: [⟨1 1 7 5 2 -2 -6 6], ⟨0 4 -32 -15 10 39 69 -12]]

Optimal tunings:

  • WE: ~2 = 1199.9864 ¢, ~21/19 = 175.4169 ¢
  • CWE: ~2 = 1200.0000 ¢, ~21/19 = 175.4189 ¢

Optimal ET sequence: 41, 130, 171

Badness (Sintel): 1.24

23-limit

Subgroup: 2.3.5.7.11.13.17.19.23

Comma list: 243/242, 323/322, 361/360, 364/363, 441/440, 456/455, 595/594

Mapping: [⟨1 1 7 5 2 -2 -6 6 -6], ⟨0 4 -32 -15 10 39 69 -12 72]]

Optimal tunings:

  • WE: ~2 = 1199.9606 ¢, ~21/19 = 175.4067 ¢
  • CWE: ~2 = 1200.0000 ¢, ~21/19 = 175.4123 ¢

Optimal ET sequence: 41i, 130, 171

Badness (Sintel): 1.36

Hearty

Subgroup: 2.3.5.7.11.13.17

Comma list: 221/220, 243/242, 364/363, 441/440, 1632/1625

Mapping: [⟨1 1 7 5 2 -2 13], ⟨0 4 -32 -15 10 39 -61]]

Optimal tunings:

  • WE: ~2 = 1199.9458 ¢, ~72/65 = 175.3689 ¢
  • CWE: ~2 = 1200.0000 ¢, ~72/65 = 175.3770 ¢

Optimal ET sequence: 41g, 89, 130

Badness (Sintel): 1.56

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 221/220, 243/242, 361/360, 364/363, 441/440, 456/455

Mapping: [⟨1 1 7 5 2 -2 13 6], ⟨0 4 -32 -15 10 39 -61 -12]]

Optimal tunings:

  • WE: ~2 = 1200.0114 ¢, ~72/65 = 175.3783 ¢
  • CWE: ~2 = 1200.0000 ¢, ~72/65 = 175.3765 ¢

Optimal ET sequence: 41g, 89, 130

Badness (Sintel): 1.39

23-limit

Subgroup: 2.3.5.7.11.13.17.19.23

Comma list: 221/220, 243/242, 276/275, 323/322, 361/360, 364/363, 441/440

Mapping: [⟨1 1 7 5 2 -2 13 6 13], ⟨0 4 -32 -15 10 39 -61 -12 -58]]

Optimal tunings:

  • WE: ~2 = 1200.0122 ¢, ~72/65 = 175.3782 ¢
  • CWE: ~2 = 1200.0000 ¢, ~72/65 = 175.3763 ¢

Optimal ET sequence: 41g, 89, 130

Badness (Sintel): 1.37

Bisesqui

Subgroup: 2.3.5.7.11

Comma list: 2401/2400, 9801/9800, 32805/32768

Mapping: [⟨2 2 14 10 23], ⟨0 4 -32 -15 -55]]

mapping generators: ~99/70, ~448/405

Optimal tunings:

  • WE: ~99/70 = 600.0429 ¢, ~448/405 = 175.4474 ¢
  • CWE: ~99/70 = 600.0000 ¢, ~448/405 = 175.4334 ¢

Optimal ET sequence: 82e, 130, 212, 342, 1156, 1498, 1840d, 5862bbccdddee

Badness (Sintel): 0.561

Tsaharuk

Main article: Tsaharuk

Tsaharuk tempers out 420175/419904, the wizma, and may be described as the 77 & 94 temperament. It is generated by a slightly flat neutral second of ~13/12, five of which make the perfect fifth, so its ploidacot is pentacot.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 420175/419904

Mapping: [⟨1 1 7 0], ⟨0 5 -40 24]]

mapping generators: ~2, ~243/224

Optimal tunings:

  • WE: ~2 = 1200.1039 ¢, ~243/224 = 140.3620 ¢
error map: ⟨+0.104 -0.041 -0.067 -0.137]
  • CWE: ~2 = 1200.0000 ¢, ~243/224 = 140.3496 ¢
error map: ⟨0.000 -0.207 -0.296 -0.436]

Optimal ET sequence: 17, 77, 94, 171

Badness (Sintel): 0.777

11-limit

Subgroup: 2.3.5.7.11

Comma list: 385/384, 1331/1323, 19712/19683

Mapping: [⟨1 1 7 0 1], ⟨0 5 -40 24 21]]

Optimal tunings:

  • WE: ~2 = 1200.3103 ¢, ~88/81 = 140.4011 ¢
  • CWE: ~2 = 1200.0000 ¢, ~88/81 = 140.3649 ¢

Optimal ET sequence: 17, 77, 94, 171e, 265e

Badness (Sintel): 2.10

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 352/351, 385/384, 729/728, 1331/1323

Mapping: [⟨1 1 7 0 1 3], ⟨0 5 -40 24 21 6]]

Optimal tunings:

  • WE: ~2 = 1200.1840 ¢, ~13/12 = 140.3840 ¢
  • CWE: ~2 = 1200.0000 ¢, ~13/12 = 140.3627 ¢

Optimal ET sequence: 17, 77, 94, 171e

Badness (Sintel): 1.57

Quanharuk

Quanharuk tempers out 16875/16807, the mirkwai comma, and may be described as the 41 & 183 temperament. The generator is a slightly flat major third of ~56/45, five of which make the 3rd harmonic, so the ploidacot of this temperament is alpha-pentacot. 224edo makes for a recommendable tuning.

Subgroup: 2.3.5.7

Comma list: 16875/16807, 32805/32768

Mapping: [⟨1 0 15 12], ⟨0 5 -40 -29]]

mapping generators: ~2, ~56/45

Optimal tunings:

  • WE: ~2 = 1200.0032 ¢, ~56/45 = 380.3557 ¢
error map: ⟨+0.003 -0.177 -0.493 +0.898]
  • CWE: ~2 = 1200.0000 ¢, ~56/45 = 380.3546 ¢
error map: ⟨0.000 -0.182 -0.498 +0.890]

Optimal ET sequence: 41, 142, 183, 224

Badness (Sintel): 1.82

11-limit

Subgroup: 2.3.5.7.11

Comma list: 540/539, 1375/1372, 32805/32768

Mapping: [⟨1 0 15 12 -7], ⟨0 5 -40 -29 33]]

Optimal tunings:

  • WE: ~2 = 1199.9709 ¢, ~56/45 = 380.3423 ¢
  • CWE: ~2 = 1200.0000 ¢, ~56/45 = 380.3517 ¢

Optimal ET sequence: 41, 142, 183, 224, 631d, 855d

Badness (Sintel): 1.04

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 729/728, 1375/1372, 4096/4095

Mapping: [⟨1 0 15 12 -7 -15], ⟨0 5 -40 -29 33 59]]

Optimal tunings:

  • WE: ~2 = 1199.9663 ¢, ~56/45 = 380.3403 ¢
  • CWE: ~2 = 1200.0000 ¢, ~56/45 = 380.3509 ¢

Optimal ET sequence: 41, 142, 183, 224, 631d, 855d

Badness (Sintel): 0.884

Quintilipyth

Named by Xenllium in 2021, quintilipyth (formerly quintilischis) slices the perfect fourth into five semitones and tempers out the compass comma (9765625/9680832) in the 7-limit. It may be described as the 12 & 253 temperament, and its ploidacot is omega-pentacot.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 9765625/9680832

Mapping: [⟨1 2 -1 -4], ⟨0 -5 40 82]]

mapping generators: ~2, ~625/588

Optimal tunings:

  • WE: ~2 = 1200.1138 ¢, ~625/588 = 99.6347 ¢
error map: ⟨+0.114 +0.099 -1.041 +0.761]
  • CWE: ~2 = 1200.0000 ¢, ~625/588 = 99.6265 ¢
error map: ⟨0.000 -0.087 -1.255 +0.544]

Optimal ET sequence: 12, …, 253, 265

Badness (Sintel): 6.43

11-limit

Subgroup: 2.3.5.7.11

Comma list: 1375/1372, 4375/4356, 32805/32768

Mapping: [⟨1 2 -1 -4 -7], ⟨0 -5 40 82 126]]

Optimal tunings:

  • WE: ~2 = 1200.1503 ¢, ~35/33 = 99.6287 ¢
  • CWE: ~2 = 1200.0000 ¢, ~35/33 = 99.6176 ¢

Optimal ET sequence: 12, …, 253, 265, 518c

Badness (Sintel): 3.74

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 1375/1372, 2080/2079, 4375/4356, 10648/10647

Mapping: [⟨1 2 -1 -4 -7 -9], ⟨0 -5 40 82 126 153]]

Optimal tunings:

  • WE: ~2 = 1200.1774 ¢, ~35/33 = 99.6267 ¢
  • CWE: ~2 = 1200.0000 ¢, ~35/33 = 99.6134 ¢

Optimal ET sequence: 12f, …, 241cdef, 253

Badness (Sintel): 2.86

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 375/374, 595/594, 833/832, 1375/1372, 8624/8619

Mapping: [⟨1 2 -1 -4 -7 -9 5], ⟨0 -5 40 82 126 153 -11]]

Optimal tunings:

  • WE: ~2 = 1200.1745 ¢, ~18/17 = 99.6265 ¢
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6131 ¢

Optimal ET sequence: 12f, 241cdef, 253

Badness (Sintel): 2.34

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 375/374, 400/399, 495/494, 595/594, 1375/1372, 3978/3971

Mapping: [⟨1 2 -1 -4 -7 -9 5 4], ⟨0 -5 40 82 126 153 -11 3]]

Optimal tunings:

  • WE: ~2 = 1200.0713 ¢, ~18/17 = 99.6208 ¢
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6152 ¢

Optimal ET sequence: 12f, 253, 265

Badness (Sintel): 2.32

Quintaschis

Named by Xenllium in 2021, quintaschis slices the perfect fourth into five semitones and tempers out 49009212/48828125 in the 7-limit. It may be described as the 12 & 289 temperament, and its ploidacot is omega-pentacot.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 49009212/48828125

Mapping: [⟨1 2 -1 -5], ⟨0 -5 40 94]]

Optimal tunings:

  • WE: ~2 = 1200.0536 ¢, ~200/189 = 99.6684 ¢
error map: ⟨+0.054 -0.190 +0.370 -0.262]
  • CWE: ~2 = 1200.0000 ¢, ~200/189 = 99.6645 ¢
error map: ⟨0.000 -0.277 +0.266 -0.363]

Optimal ET sequence: 12, …, 289, 301, 590, 891, 1192

Badness (Sintel): 3.36

11-limit

Subgroup: 2.3.5.7.11

Comma list: 441/440, 32805/32768, 1953125/1951488

Mapping: [⟨1 2 -1 -5 -8], ⟨0 -5 40 94 138]]

Optimal tunings:

  • WE: ~2 = 1200.0988 ¢, ~35/33 = 99.6613 ¢
  • CWE: ~2 = 1200.0000 ¢, ~35/33 = 99.6540 ¢

Optimal ET sequence: 12, …, 277d, 289

Badness (Sintel): 3.69

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 441/440, 32805/32768, 109512/109375

Mapping: [⟨1 2 -1 -5 -8 -11], ⟨0 -5 40 94 138 177]]

Optimal tunings:

  • WE: ~2 = 1200.0625 ¢, ~35/33 = 99.6630 ¢
  • CWE: ~2 = 1200.0000 ¢, ~35/33 = 99.6583 ¢

Optimal ET sequence: 12f, …, 277dff, 289

Badness (Sintel): 3.07

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 364/363, 441/440, 595/594, 3757/3750, 32805/32768

Mapping: [⟨1 2 -1 -5 -8 -11 5], ⟨0 -5 40 94 138 177 -11]]

Optimal tunings:

  • WE: ~2 = 1200.1286 ¢, ~18/17 = 99.6668 ¢
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6568 ¢

Optimal ET sequence: 12f, 277dff, 289

Badness (Sintel): 2.58

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 364/363, 441/440, 476/475, 595/594, 3757/3750, 6885/6859

Mapping: [⟨1 2 -1 -5 -8 -11 5 4], ⟨0 -5 40 94 138 177 -11 3]]

Optimal tunings:

  • WE: ~2 = 1200.0289 ¢, ~18/17 = 99.6609 ¢
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6586 ¢

Optimal ET sequence: 12f, 289

Badness (Sintel): 2.56

Quintahelenic

Subgroup: 2.3.5.7.11

Comma list: 5632/5625, 8019/8000, 151263/151250

Mapping: [⟨1 2 -1 -5 -9], ⟨0 -5 40 94 150]]

Optimal tunings:

  • WE: ~2 = 1200.0195 ¢, ~200/189 = 99.6723 ¢
  • CWE: ~2 = 1200.0000 ¢, ~200/189 = 99.6709 ¢

Optimal ET sequence: 12, …, 289e, 301, 915

Badness (Sintel): 2.72

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 847/845, 1716/1715, 5632/5625, 8019/8000

Mapping: [⟨1 2 -1 -5 -9 -11], ⟨0 -5 40 94 150 177]]

Optimal tunings:

  • WE: ~2 = 1200.0442 ¢, ~200/189 = 99.6709 ¢
  • CWE: ~2 = 1200.0000 ¢, ~200/189 = 99.6675 ¢

Optimal ET sequence: 12f, …, 289e, 301

Badness (Sintel): 2.30

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 561/560, 833/832, 847/845, 1701/1700, 3757/3750

Mapping: [⟨1 2 -1 -5 -9 -11 5], ⟨0 -5 40 94 150 177 -11]]

Optimal tunings:

  • WE: ~2 = 1200.1227 ¢, ~200/189 = 99.6753 ¢
  • CWE: ~2 = 1200.0000 ¢, ~200/189 = 99.6658 ¢

Optimal ET sequence: 12f, 289e, 301

Badness (Sintel): 2.06

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 476/475, 495/494, 561/560, 833/832, 847/845, 1701/1700

Mapping: [⟨1 2 -1 -5 -9 -11 5 4], ⟨0 -5 40 94 150 177 -11 3]]

Optimal tunings:

  • WE: ~2 = 1200.0230 ¢, ~200/189 = 99.6694 ¢
  • CWE: ~2 = 1200.0000 ¢, ~200/189 = 99.6676 ¢

Optimal ET sequence: 12f, 301

Badness (Sintel): 2.24

Quintahelenoid

Subgroup: 2.3.5.7.11.13

Comma list: 729/728, 1001/1000, 4096/4095, 86515/86436

Mapping: [⟨1 2 -1 -5 -9 14], ⟨0 -5 40 94 150 -124]]

Optimal tunings:

  • WE: ~2 = 1199.9919 ¢, ~200/189 = 99.6712 ¢
  • CWE: ~2 = 1200.0000 ¢, ~200/189 = 99.6718 ¢

Optimal ET sequence: 12, 301, 614, 915

Badness (Sintel): 2.73

17-limit

Subgroup: 2.3.5.7.11.13.17

Comma list: 561/560, 729/728, 1001/1000, 4096/4095, 14161/14157

Mapping: [⟨1 2 -1 -5 -9 14 5], ⟨0 -5 40 94 150 -124 -11]]

Optimal tunings:

  • WE: ~2 = 1200.0469 ¢, ~18/17 = 99.6749 ¢
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6710 ¢

Optimal ET sequence: 12, 301

Badness (Sintel): 2.44

19-limit

Subgroup: 2.3.5.7.11.13.17.19

Comma list: 476/475, 561/560, 729/728, 1001/1000, 4096/4095, 6144/6137

Mapping: [⟨1 2 -1 -5 -9 14 5 4], ⟨0 -5 40 94 150 -124 -11 3]]

Optimal tunings:

  • WE: ~2 = 1199.9925 ¢, ~18/17 = 99.6710 ¢
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6716 ¢

Optimal ET sequence: 12, 301

Badness (Sintel): 2.41

Sextilifourths

Named by Xenllium in 2021, sextilifourths (also known as sextilischis, formerly sextilififths) slices the perfect fourth into six small semitones, which serves as both 21/20 and 22/21. It may be described as 130 & 159, and its ploidacot is omega-hexacot. 289edo gives a highly recommendable tuning.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 235298/234375

Mapping: [⟨1 2 -1 -1], ⟨0 -6 48 55]]

mapping generators: ~2, ~21/20

Optimal tunings:

  • WE: ~2 = 1200.0987 ¢, ~21/20 = 83.0599 ¢
error map: ⟨+0.099 -0.117 +0.462 -0.630]
  • CWE: ~2 = 1200.0000 ¢, ~21/20 = 83.0543 ¢
error map: ⟨0.000 -0.281 +0.295 -0.837]

Optimal ET sequence: 29, 72cd, 101, 130, 289, 419

Badness (Sintel): 2.75

11-limit

Subgroup: 2.3.5.7.11

Comma list: 441/440, 4000/3993, 235298/234375

Mapping: [⟨1 2 -1 -1 0], ⟨0 -6 48 55 50]]

Optimal tunings:

  • WE: ~2 = 1200.0424 ¢, ~21/20 = 83.0520 ¢
  • CWE: ~2 = 1200.0000 ¢, ~21/20 = 83.0497 ¢

Optimal ET sequence: 29, 72cde, 101e, 130, 289

Badness (Sintel): 1.50

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 364/363, 441/440, 676/675, 10985/10976

Mapping: [⟨1 2 -1 -1 0 1], ⟨0 -6 48 55 50 39]]

Optimal tunings:

  • WE: ~2 = 1200.1056 ¢, ~21/20 = 83.0566 ¢
  • CWE: ~2 = 1200.0000 ¢, ~21/20 = 83.0508 ¢

Optimal ET sequence: 29, 72cdef, 101e, 130, 289

Badness (Sintel): 1.04

Septant

Named by Xenllium in 2021, septant notably tempers out the akjaysma ([47 -7 -7 -7⟩) and may be described as the 224 & 301 temperament. It has a period of 1/7 octave, and its ploidacot is heptaploid monocot.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 516560652/514714375

Mapping: [⟨7 0 105 -56], ⟨0 1 -8 7]]

mapping generators: ~8575/7776, ~3

Optimal tunings:

  • WE: ~8575/7776 = 171.4303 ¢, ~3/2 = 701.7091 ¢
error map: ⟨+0.012 -0.234 +0.096 +0.265]
  • CWE: ~8575/7776 = 171.4286 ¢, ~3/2 = 701.7022 ¢
error map: ⟨0.000 -0.253 +0.069 +0.232]

Optimal ET sequence: 77, 147, 224, 301, 525, 826, 1351

Badness (Sintel): 2.81

11-limit

Subgroup: 2.3.5.7.11

Comma list: 3025/3024, 24057/24010, 32805/32768

Mapping: [⟨7 0 105 -56 -120], ⟨0 1 -8 7 13]]

Optimal tunings:

  • WE: ~495/448 = 171.4334 ¢, ~3/2 = 701.7387 ¢
  • CWE: ~495/448 = 171.4286 ¢, ~3/2 = 701.7198 ¢

Optimal ET sequence: 77, 147, 224, 301, 525

Badness (Sintel): 1.46

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 729/728, 1716/1715, 2200/2197, 3025/3024

Mapping: [⟨7 0 105 -56 -120 37], ⟨0 1 -8 7 13 -1]]

Optimal tunings:

  • WE: ~495/448 = 171.4282 ¢, ~3/2 = 701.7229 ¢
  • CWE: ~495/448 = 171.4286 ¢, ~3/2 = 701.7242 ¢

Optimal ET sequence: 77, 147, 224, 525, 1274f

Badness (Sintel): 1.02

Octant

Octant may be described as the 224 & 248 temperament. It has a period of 1/8 octave, and its ploidacot is octaploid monocot. In this temperament, 12/11, 35/27, and 99/70 are mapped to 1\8, 3\8, and 4\8 respectively.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 2259436291848/2251875390625

Mapping: [⟨8 0 120 -117], ⟨0 1 -8 11]]

mapping generators: ~42875/39366, ~3

Optimal tunings:

  • WE: ~42875/39366 = 150.0048 ¢, ~3/2 = 701.7356 ¢
error map: ⟨+0.039 -0.181 +0.071 +0.127]
  • CWE: ~42875/39366 = 150.0000 ¢, ~3/2 = 701.7134 ¢
error map: ⟨0.000 -0.242 -0.021 +0.022]

Optimal ET sequence: 24, …, 224, 472, 696, 1168

Badness (Sintel): 3.98

11-limit

Subgroup: 2.3.5.7.11

Comma list: 9801/9800, 32805/32768, 46656/46585

Mapping: [⟨8 0 120 -117 15], ⟨0 1 -8 11 1]]

Optimal tunings:

  • WE: ~12/11 = 150.0010 ¢, ~3/2 = 701.7177 ¢
  • CWE: ~12/11 = 150.0000 ¢, ~3/2 = 701.7131 ¢

Optimal ET sequence: 24, …, 224, 472, 696, 1168

Badness (Sintel): 1.48

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 729/728, 1575/1573, 2200/2197, 6656/6655

Mapping: [⟨8 0 120 -117 15 93], ⟨0 1 -8 11 1 -5]]

Optimal tunings:

  • WE: ~12/11 = 149.9957 ¢, ~3/2 = 701.7046 ¢
  • CWE: ~12/11 = 150.0000 ¢, ~3/2 = 701.7247 ¢

Optimal ET sequence: 24, 224, 472, 696

Badness (Sintel): 1.26

Nonant

Named by Xenllium in 2023, nonant tempers out the septimal ennealimma ([-11 -9 0 9⟩) and may be described as the 36 & 171 temperament. It has a period of 1/9 octave, and its ploidacot is enneaploid monocot.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 40353607/40310784

Mapping: [⟨9 0 135 11], ⟨0 1 -8 1]]

mapping generators: ~2592/2401, ~3

Optimal tunings:

  • WE: ~2592/2401 = 133.3442 ¢, ~3/2 = 701.8000 ¢
error map: ⟨+0.098 -0.057 -0.027 -0.141]
  • CWE: ~2592/2401 = 133.3333 ¢, ~3/2 = 701.7384 ¢
error map: ⟨0.000 -0.217 -0.221 -0.421]

Optimal ET sequence: 36, 99c, 135, 171, 2772bd, 2943bdd, …, 5166bccddd, 5337bccddd

Badness (Sintel): 1.77

11-limit

Subgroup: 2.3.5.7.11

Comma list: 540/539, 32805/32768, 42875/42592

Mapping: [⟨9 0 135 11 131], ⟨0 1 -8 1 -7]]

Optimal tunings:

  • WE: ~242/225 = 133.3308 ¢, ~3/2 = 701.8205 ¢
  • CWE: ~242/225 = 133.3333 ¢, ~3/2 = 701.8351 ¢

Optimal ET sequence: 36, 135, 171

Badness (Sintel): 4.20

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 729/728, 4096/4095, 16807/16731

Mapping: [⟨9 0 135 11 131 -38], ⟨0 1 -8 1 -7 5]]

Optimal tunings:

  • WE: ~242/225 = 133.3180 ¢, ~3/2 = 701.6956 ¢
  • CWE: ~242/225 = 133.3333 ¢, ~3/2 = 701.7800 ¢

Optimal ET sequence: 36, 99cf, 135, 171

Badness (Sintel): 3.15

Septiquarschis

Named by Xenllium in 2021, septiquarschis tempers out 829440/823543 (mynaslender comma) and 67108864/66706983 (septiness comma), and may be described as the 89 & 94 temperament. It splits septimal minor seventh (7/4) into four generators. Note that in the data below, the generator is the octave complement so that seven of them minus five octaves make a perfect fifth; its ploidacot is thus epsilon-heptacot.

Subgroup: 2.3.5.7

Comma list: 32805/32768, 829440/823543

Mapping: [⟨1 -4 47 6], ⟨0 7 56 -4]]

mapping generators: ~2, ~256/147

Optimal tunings:

  • WE: ~2 = 1199.8855 ¢, ~256/147 = 957.2944 ¢
error map: ⟨-0.114 -0.436 -0.182 +1.310]
  • CWE: ~2 = 1200.0000 ¢, ~256/147 = 957.3867 ¢
error map: ⟨0.000 -0.248 +0.032 +1.627]

Optimal ET sequence: 89, 94, 183, 460d, 643d

Badness (Sintel): 4.73

11-limit

Subgroup: 2.3.5.7.11

Comma list: 540/539, 15488/15435, 32805/32768

Mapping: [⟨1 -4 47 6 25], ⟨0 7 56 -4 -27]]

Optimal tunings:

  • WE: ~2 = 1199.9430 ¢, ~256/147 = 957.3390 ¢
  • CWE: ~2 = 1200.0000 ¢, ~256/147 = 957.3849 ¢

Optimal ET sequence: 89, 94, 183, 460d

Badness (Sintel): 1.72

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 540/539, 729/728, 1573/1568, 4096/4095

Mapping: [⟨1 -4 47 6 25 -33], ⟨0 7 56 -4 -27 46]]

Optimal tunings:

  • WE: ~2 = 1200.0058 ¢, ~256/147 = 957.3946 ¢
  • CWE: ~2 = 1200.0000 ¢, ~256/147 = 957.3900 ¢

Optimal ET sequence: 89, 94, 183, 277, 460d

Badness (Sintel): 1.46

Tridecafifths

Named by Eliora in 2023, tridecafifths may be described as the 89 & 200 temperament. It divides the perfect fifth into thirteen quartertones, so its ploidacot is 13-cot. 289edo gives a highly recommendable tuning.

Subgroup: 2.3.5.7

Comma list: 32805/32768, [-14 -1 -9 13⟩

Mapping: [⟨1 1 7 6], ⟨0 13 -104 -71]]

mapping generators: ~2, ~1323/1280

Optimal tunings:

  • WE: ~2 = 1200.1431 ¢, ~1323/1280 = 53.9838 ¢
error map: ⟨+0.143 -0.023 +0.375 -0.816]
  • CWE: ~2 = 1200.0000 ¢, ~1323/1280 = 53.9764 ¢
error map: ⟨0.000 -0.261 -0.221 -0.421]

Optimal ET sequence: 89, 200, 289

Badness (Sintel): 10.9

11-limit

Subgroup: 2.3.5.7.11

Comma list: 441/440, 32805/32768, 55296000/55240493

Mapping: [⟨1 1 7 6 4], ⟨0 13 -104 -71 -12]]

Optimal tunings:

  • WE: ~2 = 1200.0311 ¢, ~33/32 = 53.9766 ¢
  • CWE: ~2 = 1200.0000 ¢, ~33/32 = 53.9750 ¢

Optimal ET sequence: 89, 200, 289

Badness (Sintel): 4.23

Subgroup extensions

Maqamschismic (2.3.5.11)

Proposed by Eufalesio in 2026, maqamschismic is equivalent to the no-7 cassandra. The 2.3.5.11.13 subgroup adds 352/351 to the comma list and tempers 11/9~39/32 together (and 16/13~27/22), providing a very simple framework for tuning maqamat (especially the Turkish version), as outlined by Ozan Yarman. 41edo and 53edo are simplest, but 94edo is more optimized. It is only slightly worse than the no-7 helenus.

Subgroup: 2.3.5.11

Comma list: 2200/2187, 4125/4096

Subgroup-val mapping: [⟨1 0 15 -33], ⟨0 1 -8 23]]

Optimal tunings:

  • WE: ~2 = 1200.5458 ¢ ~3/2 = 702.4021 ¢
  • CWE: 2 = 1200.0000 ¢, ~3/2 = 702.0906 ¢

Optimal ET sequence: 12e, …, 41, 53, 94, 147e, 241ce, 335ce

Badness (Sintel): 1.34

2.3.5.11.13 subgroup

Subgroup: 2.3.5.11.13

Comma list: 325/324, 352/351, 4125/4096

Subgroup-val mapping: [⟨1 0 15 -33 -28], ⟨0 1 -8 23 20]]

Optimal tunings:

  • WE: ~2 = 1200.4565 ¢ ~3/2 = 702.3057 ¢
  • CWE: 2 = 1200.0000 ¢, ~3/2 = 702.0485 ¢

Optimal ET sequence: 12e, …, 41, 53, 94, 147e

Badness (Sintel): 0.862

Tridecaschismic (2.3.5.13)

Proposed by Eufalesio in 2026, tridecaschismic adds the marveltwin comma to the comma list, or equivalently, the tridecapyth comma. It benefits from a fifth that is just, or practically indistinguishable from just, like in 53edo. It is one of the lowest badness schismic extensions. It is also equivalent to the 2.3.5.13 restriction of 13-limit cassandra.

Subgroup: 2.3.5.13

Comma list: 325/324, 32805/32768

Subgroup-val mapping: [⟨1 0 15 -28], ⟨0 1 -8 20]]

Optimal tunings:

  • WE: ~2 = 1200.3326 ¢ ~3/2 = 702.1092 ¢
  • CWE: 2 = 1200.0000 ¢, ~3/2 = 701.9189 ¢

Optimal ET sequence: 12, …, 41, 53, 412cf, 465cf, …, 783ccff, 836ccfff

Badness (Sintel): 0.582

2.3.5.13.19 subgroup

Subgroup: 2.3.5.13.19

Comma list: 325/324, 361/360, 513/512

Subgroup-val mapping: [⟨1 0 15 -28 9], ⟨0 1 -8 20 -3]]

Optimal tunings:

  • WE: ~2 = 1200.4236 ¢, ~3/2 = 702.1510 ¢
  • CWE: 2 = 1200.0000 ¢, ~3/2 = 701.9064 ¢

Optimal ET sequence: 12, …, 41, 53

Badness (Sintel): 0.354

Photia (2.3.5.17)

See also: No-elevens subgroup temperaments § Garibaldia

Subgroup: 2.3.5.17

Comma list: 256/255, 1458/1445

Subgroup-val mapping: [⟨1 0 15 -7], ⟨0 1 -8 7]]

Gencom mapping: [⟨1 0 15 0 0 0 -7], ⟨0 1 -8 0 0 0 7]]

mapping generators: ~2, ~3

Optimal tunings:

  • WE: ~2 = 1199.5471 ¢, ~3/2 = 701.2262 ¢
error map: ⟨-0.453 -1.182 +0.706 +3.628]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.4976 ¢
error map: ⟨0.000 -0.457 +1.705 +5.528]

Optimal ET sequence: 12, 41, 53, 65, 207g, 272gg

Badness (Sintel): 0.479

2.3.5.17.19 subgroup

Subgroup: 2.3.5.17.19

Comma list: 171/170, 256/255, 324/323

Subgroup-val mapping: [⟨1 0 15 -7 9], ⟨0 1 -8 7 -3]]

Gencom mapping: [⟨1 0 15 0 0 0 -7 9], ⟨0 1 -8 0 0 0 7 -3]]

Optimal tunings:

  • WE: ~2 = 1199.7225 ¢, ~3/2 = 701.3077 ¢
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.4754 ¢

Optimal ET sequence: 12, 41, 53, 65, 142g

Badness (Sintel): 0.332

Nestoria (2.3.5.19)

See also: No-elevens subgroup temperaments #Garibaldia and #Pontia

Nestoria is notable for having one of the lowest-badness subgroup extensions of schismic. Note that despite prime 19 being optimized by a flatter fifth, the fifth in optimal tunings of nestoria is generally not flatter than the fifth in optimal schismic due to its optimization considering intervals like 19/10 and 19/15.

Subgroup: 2.3.5.19

Comma list: 361/360, 513/512

Subgroup-val mapping: [⟨1 0 15 9], ⟨0 1 -8 -3]]

Gencom mapping: [⟨1 0 15 0 0 0 0 9], ⟨0 1 -8 0 0 0 0 -3]]

mapping generators: ~2, ~3

Optimal tunings:

  • WE: ~2 = 1200.2250 ¢, ~3/2 = 701.8776 ¢
error map: ⟨+0.225 +0.148 +0.240 -1.796]
  • CWE: ~2 = 1200.0000 ¢, ~3/2 = 701.7307 ¢
error map: ⟨0.000 -0.224 -0.159 -2.705]

Optimal ET sequence: 12, 29, 41, 53, 118, 171, 460hh, 631hh

Badness (Sintel): 0.126

Taylor (2.3.5.13)

This is a 2.3.5.13 subgroup restriction of 13-limit hemischis.

Subgroup: 2.3.5.13

Comma list: 676/675, 32805/32768

Subgroup-val mapping: [⟨1 0 15 14], ⟨0 2 -16 -13]]

Gencom mapping: [⟨1 0 15 0 0 14], ⟨0 2 -16 0 0 -13]]

mapping generators: ~2, ~26/15

Optimal tunings:

  • WE: ~2 = 1200.1497 ¢, ~26/15 = 950.9740 ¢
error map: ⟨+0.150 -0.007 +0.348 -1.094]
  • CWE: ~2 = 1200.0000 ¢, ~26/15 = 950.8493 ¢
error map: ⟨0.000 -0.256 +0.098 -1.568]

Optimal ET sequence: 24, 53, 130, 183, 236, 525f, 761ff

Badness (Sintel): 0.334

Dakota (2.3.5.13.19)

Subgroup: 2.3.5.13.19

Comma list: 361/360, 513/512, 676/675

Subgroup-val mapping: [⟨1 0 15 14 9], ⟨0 2 -16 -13 -6]]

Optimal tunings:

  • WE: ~2 = 1200.2611 ¢, ~26/15 = 951.0703 ¢
  • CWE: ~2 = 1200.0000 ¢, ~26/15 = 950.8532 ¢

Optimal ET sequence: 24, 29, 53, 130, 183, 236h, 289h

Badness (Sintel): 0.262

2.3.5.13.19.37 subgroup

Subgroup: 2.3.5.13.19.37

Comma list: 361/360, 481/480, 513/512, 676/675

Subgroup-val mapping: [⟨1 0 15 14 9 6], ⟨0 2 -16 -13 -6 -1]]

Optimal tunings:

  • WE: ~2 = 1200.2987 ¢, ~26/15 = 951.1060 ¢
  • CWE: ~2 = 1200.0000 ¢, ~26/15 = 950.8595 ¢

Optimal ET sequence: 24, 29, 53, 183, 236h, 289hl, 631fhhll

Badness (Sintel): 0.223

Quintilischis (2.3.5.17)

For full 17- and 19-limit extensions, see #Quintilipyth or #Quintaschis.

Subgroup: 2.3.5.17

Comma list: 32805/32768, 1419857/1417176

Subgroup-val mapping: [⟨1 2 -1 5], ⟨0 -5 40 -11]]

Gencom mapping: [⟨1 2 -1 0 0 0 5], ⟨0 -5 40 0 0 0 -11]]

mapping generators: ~2, ~18/17

Optimal tunings:

  • WE: ~2 = 1200.1370 ¢, ~18/17 = 99.6602 ¢
error map: ⟨+0.137 +0.018 -0.042 -0.533]
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6499 ¢
error map: ⟨0.000 -0.205 -0.317 -1.104]

Optimal ET sequence: 12, …, 253, 265, 277, 289, 566g, 855g

Badness (Sintel): 1.34

2.3.5.17.19 subgroup

Subgroup: 2.3.5.17.19

Comma list: 4624/4617, 6144/6137, 6885/6859

Subgroup-val mapping: [⟨1 2 -1 5 4], ⟨0 -5 40 -11 3]]

Gencom mapping: [⟨1 2 -1 0 0 0 5 4], ⟨0 -5 40 0 0 0 -11 3]]

Optimal tunings:

  • WE: ~2 = 1200.0350 ¢, ~18/17 = 99.6550 ¢
  • CWE: ~2 = 1200.0000 ¢, ~18/17 = 99.6520 ¢

Optimal ET sequence: 12, …, 253, 265, 277, 289

Badness (Sintel): 1.17

Retrieved from "https://en.xen.wiki/index.php?title=Schismatic_family&oldid=229780#Sesquart"