Chromatic pairs

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A chromatic pair is a pair of mos scales in some rank-2 temperament (either a full p-limit temperament or a subgroup temperament) that are analogous to the familiar diatonic and chromatic scales of standard tuning. The smaller scale is an albitonic scale (from Latin albus, "white"), named such since the diatonic scale can be played using the white keys of a piano, and the larger of the two is a chromatic scale, analogous to the chromatic scale of standard tuning. Other related scales can be associated to chromatic pairs, namely a haplotonic scale (from Greek haplóos, "single, simple"), analogous to the pentatonic scale of standard tuning and played using the black keys of a piano.

In the sections below, the pair temperaments are listed in order of increasing RMS error, which is an appropriate error measure for subgroups as well as full p-limit groups.

Terrain

"Terrain" redirects here. For the scale, see Terrain (scale).
terrain_3558edo.png
Terrain in 3558edo

Scales:

Music

Petrtri

petrtri_385edo.png
Petrtri in 385edo

Scales:

Barton

"Barton" redirects here. For Jacob Barton's scale, see Barton (scale).

Barton may be described as the 11 & 13 temperament in the 2.5.11.13 subgroup. It was named after Jacob Barton by Gene Ward Smith and Carl Lumma in 2006[1].

Subgroup: 2.5.11.13

Comma list: 2200/2197, 6656/6655

Sval mapping[1 6 3 6], 0 -8 1 -5]]

Gencom mapping[1 0 6 0 3 6], 0 0 -8 0 1 -5]]

gencom: [2 11/8; 2200/2197 6656/6655]

Optimal tuning (POTE): ~2 = 1\1, ~11/8 = 551.699

Optimal ET sequence11, 13, 24, 37, 50, 87, 298, 385, 472, 559, 1590cd

RMS error: 0.0822 cents

Scales:

  • Barton5 – 5-tone haplotonic scale
  • Barton7 – 7-tone albitonic scale
  • Barton9 – 9-tone mega-albitonic scale
  • Barton11 – 11-tone chromatic scale
  • Barton13 – 13-tone mega-chromatic scale

Voltage

Voltage is the 3 & 7 temperament in the 2.7.13 subgroup.

Subgroup: 2.7.13

Comma list: 28672/28561

Sval mapping[1 4 4], 0 -4 -1]]

Gencom mapping[1 0 0 4 0 4], 0 0 0 -4 0 -1]]

gencom: [2, 16/13; 28672/28561]

Optimal tuning:

  • POTE: ~2 = 1\1, ~16/13 = 357.677
  • POTT: ~2 = 1\1, ~16/13 = 357.794 (1200 - 300 log2(7))

Optimal ET sequence3, 7, 10, 27, 37, 47, 57, 104

RMS error: 0.1423

Tridec

tridec_235edo.png
Tridec in 235edo

Scales:

Nestoria

nestoria_171edo.png
Nestoria in 171edo

Scales:

Orgone

Orgone, the 4 & 7 temperament in the 2.7.11 subgroup, is related to superkleismic.

Subgroup: 2.7.11

Comma list: 65536/65219

Sval mapping[1 2 4], 0 3 -2]]

Gencom mapping[1 0 0 2 4], 0 0 0 3 -2]]

gencom: [2 77/64; 65536/65219]

Optimal tuning (POTE): ~2 = 1\1, ~77/64 = 323.372

Optimal ET sequence4, 7, 11, 15, 26, 89, 115, 141, 167, 308, 475bc, 783bc

RMS error: 0.1888 cents

orgone_308edo.jpg
Orgone in 308edo

Scales:

Marveltwintri

marveltwintri_321edo.png
Marveltwintri in 321edo

Scales:

Cata

cata_246edo.jpg
Cata in 246edo

Scales:

  • Cata7 – 7-tone albitonic scale
  • Cata11 – 11-tone mega-albitonic scale
  • Cata15 – 15-tone chromatic scale
  • Cata19 – 19-tone mega-chromatic scale

Bridgetown

bridgetown_29edo.png
Bridgetown in 29edo

Scales:

Music

Haumea

Scales:

Neutral

neutral_380edo.png
Neutral in 380edo

Scales:

Music

Slendric

See also: Gamelismic clan #Slendric and No-fives subgroup temperaments #Slendric
slendric_190edo.jpg
Slendric in 190edo

Scales:

Huntington

Huntington may be described as the 10 & 27 temperament in the 2.5.7.13 subgroup.

Subgroup: 2.5.7.13

Comma list: 640/637, 10985/10976

Sval mapping[1 5 4 4], 0 -9 -4 -1]]

Gencom mapping[1 0 5 4 0 4], 0 0 -9 -4 0 -1]]

gencom: [2 16/13; 640/637 10985/10976]

Optimal tuning (POTE): ~2 = 1\1, ~16/13 = 357.002

Optimal ET sequence7, 10, 17, 27, 37, 84, 121, 279cd, 400cd

RMS error: 0.3452 cents

huntington_400edo.jpg
Huntington in 400edo

Scales:

Tobago

Scales:

Pepperoni

pepperoni_271edo.png
Pepperoni in 271edo

Scales:

Wizz

Wizz, the 6 & 16 temperament in the 2.5.11 subgroup, is related to wizard.

Subgroup: 2.5.11

Comma list: 15625/15488

Sval mapping[2 0 -7], 0 1 3]]

Gencom mapping[2 0 4 0 5], 0 0 1 0 3]]

gencom: [125/88 5/4; 15625/15488]

Optimal tuning (POTE): ~125/88 = 1\2, ~5/4 = 383.768

Optimal ET sequence6, 16, 22, 28, 50, 122, 172, 222

RMS error: 0.3997

Scales:

  • Wizz6 – 6-tone haplotonic scale
  • Wizz10 – 10-tone albitonic scale
  • Wizz16 – 16-tone chromatic scale

Bossier

Bossier can be described as the 3 & 17 in the 2.7.11.13 subgroup.

Subgroup: 2.7.11.13

Comma list: 1573/1568, 15488/15379

Sval mapping[1 0 1 3], 0 8 7 2]]

Gencom mapping[1 0 0 0 1 3], 0 0 0 8 7 2]]

gencom: [2 14/11; 1573/1568 15488/15379]

Optimal tuning (POTE): ~2 = 1\1, ~14/11 = 421.309

Optimal ET sequence17, 20, 37, 57, 94, 225, 319cd, 413bcd

RMS error: 0.4043 cents

bossier_225edo.jpg
Bossier in 225edo

Scales:

Penta a.k.a. mechanism

Scales:

  • Penta5 – 5-tone haplotonic scale
  • Penta8 – 8-tone albitonic scale
  • Penta11 – 11-tone chromatic scale
  • Penta19 – 19-tone mega-chromatic scale

Bluebirds

Subgroup: 2.11.13

Comma list: 265837/262144

Sval mapping[1 0 6], 0 3 -2]]

Gencom mapping[1 0 0 0 3 4], 0 0 0 0 3 -2]]

gencom: [2 143/128; 265837/262144]

Optimal tuning (POTE): ~2 = 1\1, ~143/128 = 182.368

Optimal ET sequence6, 7, 13, 33, 46, 79, 125c, 204bc, 329bc

RMS error: 0.4444 cents

Scales:

Marveltri

Scales:

Edson

Scales:

  • Edson5 – 5-tone haplotonic scale
  • Edson7 – 7-tone albitonic scale
  • Edson12 – 12-tone chromatic scale
  • Edson17 – 17-tone mega-chromatic scale

Photia

photia_65edo.png
Photia in 65edo

Scales:

Shoe a.k.a. llywelyn

shoe_37edo.jpg
Shoe in 37edo

Scales:

  • Shoe5 – 5-tone mini-haplotonic scale
  • Shoe6 – 6-tone haplotonic scale
  • Shoe11 – 11-tone albitonic scale
  • Shoe16 – 16-tone chromatic scale

Roulette

roulette_37edo.jpg
Roulette in 37edo

Scales:

Silver

Silver can be described as the 10 & 27 temperament in the 2.5.7.13.17 subgroup.

Subgroup: 2.5.7.13.17

Comma list: 170/169, 640/637, 5525/5488

Sval mapping[1 5 4 4 2], 0 -9 -4 -1 7]]

Gencom mapping[1 0 -4 0 0 3 9], 0 0 9 4 0 1 -7]]

gencom: [2 13/8; 170/169 640/637 5525/5488]

Optimal tuning (POTE): ~2 = 1\1, ~13/8 = 842.711

Optimal ET sequence7, 10, 17, 27, 37, 47, 84, 131, 178e, 309cde, 487bcdee

RMS error: 0.5886 cents

silver_487edo.jpg
Silver in 487edo

Scales:

Baldy

Baldy is every other step of garibaldi, without the mapping of prime 11. It can be described as the 6 & 35 temperament.

Subgroup: 2.9.5.7.13

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

Sval mapping[1 0 15 25 -28], 0 1 -4 -7 10]]

Gencom mapping[1 3/2 3 4 0 2], 0 1/2 -4 -7 0 10]]

gencom: [2 9/8; 225/224 325/324 640/637]

Optimal tuning (POTE): ~2 = 1\1, ~9/8 = 204.090

Optimal ET sequence6, 11, 17, 23, 29, 35, 41, 47, 100, 147, 488cd, 635cd

RMS error: 0.5999 cents

baldy_147edo.jpg
Baldy in 147edo

Scales

  • Baldy6 – 6-tone haplotonic scale
  • Baldy11 – 11-tone albitonic scale
  • Baldy17 – 17-tone chromatic scale

Guanyintet

Scales:

Radon

radon_128edo.jpg
Radon in 128edo
  • Radon5 – 5-tone haplotonic scale
  • Radon11 – 11-tone albitonic scale
  • Radon16 – 16-tone chromatic scale

Gariberttet

Scales:

Namo

Scales:

  • Namo7 – 7-tone haplotonic scale
  • Namo10 – 10-tone albitonic scale
  • Namo17 – 17-tone chromatic scale

Sentry

Scales:

Hemif

hemif_58edo.jpg
Hemif in 58edo

Scales:

  • Hemif7 – 7-tone haplotonic scale
  • Hemif10 – 10-tone albitonic scale
  • Hemif17 – 17-tone chromatic scale

Garibaldi

garibaldi_94edo.png
Garibaldi in 94edo

Scales:

Mabilic

Given below is the no-three version of semabila, or equivalently the no-threes version of trismegistus. It is the 7 & 9 temperament in the 2.5.7 subgroup, and tempers out 1071875/1048576, the mabilisma.

Subgroup: 2.5.7

Comma list: 1071875/1048576

Sval mapping[1 1 5], 0 3 -5]]

Gencom mapping[1 0 1 5], 0 0 3 -5]]

gencom: [2 175/128; 1071875/1048576]

Optimal tuning (POTE): ~2 = 1\1, ~175/128 = 527.236

Optimal ET sequence7, 9, 16, 25, 41, 66, 305bc

RMS error: 0.7729 cents

mabila_66edo.jpg
Mabila in 66edo

Scales:

Indium

indium_253edo.png
Indium in 253edo

Scales:

Music

Starlingtet

Scales:

Lovecraft

Lovecraft, the 4 & 13 temperament in the 2.11.13 subgroup, is generated by ~13/11. Two generator steps give ~11/8 and three generator steps give ~13/8.

Subgroup: 2.11.13

Comma list: 1352/1331

Sval mapping[1 3 3], 0 2 3]]

Gencom mapping[1 0 0 0 3 3], 0 0 0 0 2 3]]

gencom: [2 13/11; 1352/1331]

Optimal tuning (POTE): ~2 = 1\1, ~13/11 = 279.318

Optimal ET sequence13, 30, 43, 73, 116b

RMS error: 0.8449 cents

lovecraft_116edo.png
Lovecraft in 116edo

Scales:

Blackbirds

Blackbirds is a fairly straightforward temperament. It simply equates ~13/11 to 1/4 of the octave with a generator for prime 11 or 13.

Subgroup: 2.11.13

Comma list: 29282/28561

Sval mapping[4 0 1], 0 1 1]]

Gencom mapping[4 0 0 0 12 13], 0 0 0 0 1 1]]

gencom: [13/11 11/8; 29282/28561]

Optimal tuning (POTE): ~13/11 = 1\4, ~11/8 = 546.660

Optimal ET sequence4, 16, 20, 24, 44, 68, 112c, 180bc

RMS error: 0.8685 cents

Scales:

Laz

Scales:

  • Laz5 – 5-tone haplotonic scale
  • Laz9 – 9-tone albitonic scale
  • Laz13 – 13-tone chromatic scale

Myna

myna_89edo.jpg
Myna in 89edo

Scales:

  • Myna7 – 7-tone haplotonic scale
  • Myna11 – 11-tone albitonic scale
  • Myna15 – 15-tone chromatic scale

Greeley

greeley_100edo.png
Greeley in 100edo

Scales:

Music

Semidim

semidim_770edo.png
Semidim in 770edo

Scales:

Mothwelltri

Scales:

Sulis

Scales:

  • Sulis7 – 7-tone haplotonic scale
  • Sulis10 – 10-tone albitonic scale
  • Sulis13 – 13-tone chromatic scale

Skwares

skwares_206edo.png
Skwares in 206edo

Scales:

Orwell

orwell_84edo.png
Orwell in 84edo

Scales:

Magicaltet

Scales:

Magic

magic_145edo.jpg
Magic in 145edo

Scales:

  • Magic7 – 7-tone haplotonic scale
  • Magic10 – 10-tone albitonic scale
  • Magic13 – 13-tone chromatic scale
  • Magic16 – 16-tone mega-chromatic scale

Kiribati

Scales:

Score

Subgroup: 2.7.11.13

Comma list: 343/338, 847/832

Sval mapping[1 1 3 1], 0 4 1 6]]

Gencom mapping[1 0 0 1 3 1], 0 0 0 4 1 6]]

gencom: [2 11/8; 343/338 847/832]

Optimal tuning (POTE): ~2 = 1\1, ~11/8 = 540.099

Optimal ET sequence5, 7, 9, 11, 20

RMS error: 1.282 cents

score_20edo.jpg
Score in 20edo

Scales:

  • Score5 – 5-tone haplotonic scale
  • Score7 – 7-tone albitonic scale
  • Score9 – 9-tone mega-albitonic scale
  • Score11 – 11-tone chromatic scale

Sensi

sensi_46edo.jpg
Sensi in 46edo

Scales:

  • Sensi5 – 5-tone haplotonic scale
  • Sensi8 – 8-tone albitonic scale
  • Sensi11 – 11-tone mega-albitonic scale
  • Sensi19 – 19-tone chromatic scale

Sensation

Scales:

  • Sensi5 – 5-tone haplotonic scale
  • Sensi8 – 8-tone albitonic scale
  • Sensi11 – 11-tone mega-albitonic scale
  • Sensi19 – 19-tone chromatic scale

Meantone

meantone_31edo.jpg
Meantone in 31edo

Scales:

Mohaha

mohaha_131edo.png
Mohaha in 131edo

Scales:

Music:

Billy Stiltner

Mohoho

Joan

Joan is related to casablanca as well as to orwell.

Subgroup: 2.9.7.11

Comma list: 99/98, 9317/9216

Sval mapping[1 0 1 3], 0 7 4 1]]

Gencom mapping[1 0 0 1 3], 0 7/2 0 4 1]]

gencom: [2 11/8; 99/98 9317/9216]

Optimal tuning (POTE): ~2 = 1\1, ~11/8 = 542.672 cents

Optimal ET sequence11, 20, 31, 42, 115bd, 157bd

RMS error: 1.424 cents

Scales:

  • Joan5 – 5-tone haplotonic scale
  • Joan7 – 7-tone albitonic scale
  • Joan9 – 9-tone mega-albitonic scale
  • Joan11 – 11-tone chromatic scale

Tutone

tutone_99edo.png
Tutone in 99edo

Scales:

Stacks

Scales:

Bleu

Scales:

  • Bleu8 – 8-tone haplotonic scale
  • Bleu9 – 9-tone albitonic scale
  • Bleu17 – 17-tone chromatic scale

Sephiroth

Sephiroth is the no-7 restriction of muggles.

Subgroup: 2.5.11.13.17

Comma list: 65/64, 170/169, 221/220

Sval mapping[1 0 15 6 11], 0 1 -5 -1 -3]]

Gencom mapping[1 0 2 0 5 4 5], 0 0 1 0 -5 -1 -3]]

gencom: [2 5/4; 65/64 170/169 221/220]

Optimal tuning (POTE): ~2 = 1\1, ~5/4 = 372.236

Optimal ET sequence10, 13, 16, 29

RMS error: 1.774 cents

Scales:

Archy

Scales:

  • Archy5 – 5-tone haplotonic scale
  • Archy7 – 7-tone albitonic scale
  • Archy12 – 12-tone chromatic scale

Supra

supra_56edo.png
Supra in 56edo

Scales:

Supraphon

Suhajira

Scales:

Machine

machine_28edo.png
Machine in 28edo

Scales:

Deutone

deutone_44edo.png
Deutone in 44edo

Scales:

Negra

Porkypine

Scales:

Skateboard

Scales:

Augment

Augment is related to augmented.

Subgroup: 2.5.7.11

Comma list: 56/55, 128/125

Sval mapping[3 7 0 2], 0 0 1 1]]

Gencom mapping[3 0 7 9 11], 0 0 0 -1 -1]]

gencom: [5/4 8/7; 56/55 128/125]

Optimal tuning (POTE): ~5/4 = 1\3, ~8/7 = 228.275

Optimal ET sequence3, 6, 9, 15, 21

RMS error: 2.422 cents

augment_21edo.png
Augment in 21edo

Scales:

Semaphore

semaphore_24edo.png
Semaphore in 24edo

Scales:

Kryptonite

Scales:

Oregon

Subgroup: 2.9.15.7.11

Comma list: 55/54, 64/63, 100/99

Sval mapping[1 1 1 5 2], 0 3 4 -3 2]]

Gencom mapping[1 2 3 2 4], 0 -3/2 -5/2 3 -2]]

gencom: [2 6/5; 55/54 64/63 100/99]

Optimal tuning (subgroup POTE): ~2 = 1\1, ~6/5 = 325.495

Optimal ET sequence7, 11, 37b, 48b, 59b

RMS error: 2.550 cents

Scales:

Antikythera

antikythera_28edo.png
Antikythera in 28edo

Scales:

Glacial

Subgroup: 2.9.5.11.13

Comma list: 45/44, 65/64, 81/80

Sval mapping[1 0 -4 -6 10], 0 1 2 3 -2]]

Gencom mapping[1 3/2 2 0 3 4], 0 1/2 2 0 3 -2]]

gencom: [2 9/8; 45/44 65/64 81/80]

Optimal tuning (POTE): ~2 = 1\1, ~9/8 = 186.151

Optimal ET sequence6, 13, 45be, 58bce, 71bce, 84bce

RMS error: 2.887 cents

Scales:

Leantone

leantone_81edo.png
Leantone in 81edo

Scales:

Notes