Map of rank-2 temperaments: Difference between revisions

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==Eleven periods per octave==
==Eleven periods per octave==
==Twelve periods per octave==
==Twelve periods per octave==
See also: [[Pythagorean family]]
See also: [[Compton family]]


{| class="wikitable"
{| class="wikitable"

Revision as of 05:23, 3 March 2024

This is intended to be a map of all interesting rank-2 temperaments that are compatible with octave equivalence. The only rank-2 temperaments not appearing here should be ones like Bohlen-Pierce that completely lack octaves.

Please make sure each fraction of an octave is always the mediant of the ones directly above and below.

One period per octave

Since this is the largest subset, it has its own page: Map of linear temperaments.

Two periods per octave

Generator Cents Comments
0\2 0.000
1\26 46.154
1\24 50.000 Shrutar
2\46 52.174 Shrutar
1\22 54.545 Shrutar
1\20 60.000
1\18 66.667
2\34 70.588 Vishnu
7\118 71.186 Vishnu
5\84 71.429 Vishnu
3\50 72.000
1\16 75.000
2\30 80.000
3\44 81.818
4\58 82.759 Harry
9\130 83.077 Harry
5\72 83.333 Harry
1\14 85.714
2\26 92.308 Injera
3\38 94.737 Injera
1\12 100.000 Injera/diaschismic
5\58 103.448 Diaschismic
4\46 104.348 Diaschismic/srutal
7\80 105.000 Srutal
3\34 105.882 Srutal/pajara
5\56 107.143 Pajara
2\22 109.091 Pajara
3\32 112.500
1\10 120.000 Octokaidecal/Nimona
3\28 128.571 Octokaidecal/Nimona
2\18 133.333 Octokaidecal/Nimona
3\26 138.462
6\60 140.000
11\94 140.126 Fifive
15\128 140.625 Fifive
4\34 141.176 Fifive
5\42 142.857
1\8 150.000
4\30 160.000
3\22 163.636 Hedgehog/echidna
11\80 165.000 Hedgehog/echidna
8\58 165.517 Hedgehog/echidna
5\36 166.667
2\14 171.429
3\20 180.000
7\46 182.609 Unidec/hendec
11\72 183.333 Unidec/hendec
4\26 184.615 Unidec/hendec
5\32 187.500
1\6 200.000
6\34 211.765
5\28 214.286 Antikythera
9\50 216.000 Antikythera/Wizard
13\72 216.667 Antikythera/Wizard
4\22 218.182 Antikythera/Wizard/Astrology
15\82 219.512 Astrology
11\60 220.000 Astrology
7\38 221.053
3\16 225.000 Lemba
5\26 230.769 Lemba
12\62 232.258 Lemba
7\36 233.333
9\46 234.783 Echidnic
29\148 235.135 Echidnic
20\102 235.294 Echidnic
11\56 235.714
2\10 240.000 Decimal
5\24 250.000 Decimal
8\38 252.632 Decimal
3\14 257.143 Decimal
4\18 266.667
5\22 272.727 Doublewide
16\70 274.286 Doublewide
11\48 275.000 Doublewide
6\26 276.923
1\4 300.000

Three periods per octave

Generator Cents Comments
0\3 0.000
1\30 40.000
1\27 44.444 Semiaug
2\51 47.059 Semiaug
1\24 50.000 Semiaug
1\21 57.143
1\18 66.667
1\15 80.000
6\87 82.759
11\159 83.019 Tritikleismic
5\72 83.333 Tritikleismic
4\57 84.211 Tritikleismic
3\42 85.714
2\27 88.889 Augmented/augene
3\39 92.308 Augmented/augene
1\12 100.000 Augmented/augene/august
3\33 109.091 August
2\21 114.286 August
3\30 120.000
1\9 133.333
4\33 145.455
3\24 150.000 Triforce
5\39 153.846 Triforce
2\15 160.000 Triforce
3/21 171.429
1\6 200.000

Four periods per octave

Generator Cents Comments
0\4 0
1\76 15.789
1\72 16.667 Quadritikleismic
2\140 17.143 Quadritikleismic
1\68 17.647 Quadritikleismic
1\64 18.75
1\60 20
1\56 21.429
1\52 23.068
1\48 25
1\44 27.273
1\40 30
1\36 33.333
1\32 37.5
1\28 42.857
1\24 50 Darian calendar
1\20 60
1\16 75
1\12 100 Diminished
7\80 105 Diminished/Bidia
6\68 105.882 Diminished/Bidia
5\56 107.143 Diminished/Bidia
4\44 109.091 Diminished
3\32 112.5 Diminished
2\20 120 Diminished
1\8 150 Diminished

Five periods per octave

Generator Cents Comments
0\5 0
1\35 34.286
1\30 40
2\55 43.636
1\25 48
3\70 51.429
2\45 53.3
3\65 55.385
1\20 60
4\75 64
3\55 65.455
5\90 66.667
2\35 68.571
5\85 70.588
3\50 72
4\65 73.846
1\15 80 Blackwood/Blacksmith
5\70 85.714 Blackwood/Blacksmith
4\55 87.273 Blackwood/Blacksmith
7\95 88.421 Blackwood/Blacksmith
3\40 90 Blackwood/Blacksmith
8\105 91.429 Blackwood/Blacksmith
5\65 92.308 Blackwood/Blacksmith
7\90 93.333 Blackwood/Blacksmith
2\25 96 Blackwood/Blacksmith
5\60 100 Blackwood
8\95 101.053 Blackwood
3\35 102.857 Blackwood
7\80 105 Blackwood
4\45 106.667 Blackwood
5\55 109.091 Blackwood
6\65 110.769 Blackwood
7\75 112 Blackwood
8\85 112.941 Blackwood/Elderthing
9\95 113.684 Blackwood
10\105 114.286 Blackwood
1\10 120 Blackwood

Six periods per octave

Generator Cents Comments
0\6 0
1\36 33.333
1\30 40
2\54 44.444
1\24 50
3\66 54.545
2\42 57.143
3\60 60
1\18 66.667
4\66 72.727
3\48 75
5\78 76.923
2\30 80 Hexe
5\72 83.333 Hexe
3\42 85.714 Hexe
4\54 88.889 Hexe
1\12 100 Hexe

Seven periods per octave

Generator Cents Comments
0\7 0
1\91 13.187
1\84 14.286 Absurdity
4\329 14.59 Absurdity
3\245 14.69
2\161 14.907
1\77 15.584
1\70 17.143
1\63 19.048 Sevond
2\119 20.168 Sevond
1\56 21.429 Sevond
1\48 25
1\42 28.571
1\35 34.286 Whitewood
2\63 38.095 Whitewood
1\28 42.857 Whitewood
3\77 46.753 Whitewood
2\49 48.980 Whitewood
3\70 51.429 Whitewood
1\21 57.143 Whitewood/Jamesbond/Septimal
4\77 62.338 Jamesbond/Septimal
3\56 64.286 Jamesbond/Septimal
5\91 65.934 Jamesbond/Septimal
2\35 68.571 Jamesbond/Septimal
5\84 71.429 Jamesbond/Septimal
3\49 73.469 Jamesbond/Septimal
4\63 76.190 Jamesbond/Septimal
1\14 85.714 Jamesbond/Septimal

Eight periods per octave

Generator Cents Comments
0\8 0
1\80 15
2\152 15.789 Octoid
3\224 16.071 Octoid
1\72 16.667 Octoid
1\64 18.75
1\56 21.429
1\48 25
1\40 30
2\72 33.333
1\32 37.5
3\88 40.909
2\56 42.857
3\80 45
1\24 50
4\88 54.545
3\64 56.250
5\104 57.692
2\40 60
5\96 62.5
3\56 64.286
4\72 66.667
1\16 75

Nine periods per octave

Generator Cents Comments
0\9 0
1\51 23.529
1\45 26.667
2\81 29.63
1\36 33.333
3\99 36.364
2\63 38.095
3\90 40
1\27 44.444
4\99 48.485 Ennealimmal
7\171 49.123 Ennealimmal
3\72 50 Ennealimmal
5\117 51.282
2\45 53.333
5\108 55.556
3\63 57.143
4\81 59.259
1\18 66.667

Ten periods per octave

Eleven periods per octave

Twelve periods per octave

See also: Compton family

Generator Cents Comments
0\12 0
1\636 1.887
1\624 1.923
2\1236 1.942 Atomic
3\1848 1.948 Atomic
1\612 1.961 Atomic
1\600 2
1\588 2.041
1\576 2.083
... ...
1\108 11.111
1\96 12.5 Compton
1\84 14.286 Compton
3\240 15 Compton
2\156 15.385 Compton
3\228 15.789 Compton
1\72 16.667 Compton
1\60 20 Compton
2\108 22.222
1\48 25 Catler
3\132 27.273 Catler
2\84 28.571 Catler
3\120 30 Catler
1\36 33.333 Catler/Catnip
4\132 36.364 Catnip
3\96 37.5 Catnip
5\156 38.462 Catnip
2\60 40 Catnip
5\144 41.667
3\84 42.857
4\108 44.444
1\24 50

See also

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