# Pythagorean family

The Pythagorean family tempers out the Pythagorean comma, 531441/524288 = |-19 12>, and hence the fifths form a closed 12-note circle of fifths, identical to 12edo. While the tuning of the fifth will be that of 12et, two cents flat, the tuning of the larger primes is not so constrained, and the point of these temperaments is to improve on it.

POTE generator: ~5/4 = 384.884 (15.116)

Map: [<12 19 0|, <0 0 1|]

EDOs: 12, 72, 84, 156, 240, 396b

# Compton temperament

In terms of the normal list, compton adds 413343/409600 = |-14 10 -2 1> to the Pythagorean comma; however it can also be characterized by saying it adds 225/224. Compton, however, does not need to be used as a 7-limit temperament; in the 5-limit it becomes the rank two 5-limit temperament tempering out the Pythagorean comma. In terms of equal temperaments, it is the 12&72 temperament, and 72edo, 84edo or 240edo make for good tunings. Possible generators are 21/20, 10/9, the secor, 6/5, 5/4, 7/5 and most importantly, 81/80.

In the either the 5 or 7-limit, 240edo is an excellent tuning, with 81/80 coming in at 15 cents exactly. The major third is sharp by 13.686 cents, and the minor third flat by 15.641 cents; adjusting these down and up by 15 cents puts them in excellent tune.

In terms of the normal comma list, we may add 8019/8000 to get to the 11-limit version of compton, which also adds 441/440. For this 72edo can be recommended as a tuning.

Commas: 225/224, 250047/250000

POTE generator: ~5/4 = 383.775 (16.225)

Map: [<12 19 0 -22|, <0 0 1 2|]

EDOs: 12, 60, 72, 228, 300c, 372bc, 444bc

## 11-limit

Commas: 225/224, 441/440, 4375/4356

POTE generator: ~5/4 = 383.266 (16.734)

Map: [<12 19 0 -22 -42|, <0 0 1 2 3|]

EDOs: 12, 60e, 72

## 13-limit

Commas: 225/224, 441/440, 351/350, 364/363

POTE generator: ~5/4 = 383.963 (16.037)

Map: [<12 19 0 -22 -42 -67|, <0 0 1 2 3 4|]

EDOs: 72, 228f, 300cf

## Comptone

Commas: 225/224, 441/440, 325/324, 1001/1000

POTE generator: ~5/4 = 382.612 (17.388)

Map: [<12 19 0 -22 -42 100|, <0 0 1 2 3 -2|]

EDOs: 12, 60e, 72, 204cdef, 276cdef

# Catler temperament

In terms of the normal comma list, catler is characterized by the addition of the schisma, 32805/32768, to the Pythagorean comma, though it can also be characterized as adding 81/80, 128/125 or 648/625. In any event, the 5-limit is exactly the same as the 5-limit of 12edo. Catler can also be characterized as the 12&24 temperament. 36edo or 48edo are possible tunings, and 36/35, 21/20, 15/14, 8/7, 7/6, 6/5, 9/7 or 7/5 are possible generators.

Commas: 81/80, 128/125

POTE generator: 26.790

Map: [<12 19 28 0|, <0 0 0 1|]

EDOs: 12, 36, 48, 132, 180

## 11-limit

Commas: 81/80, 99/98, 128/125

POTE generator: ~36/35 = 22.723

Map: [<12 19 28 0 -26|, <0 0 0 1 2|]

EDOs: 12, 48c, 108cd

## Catlat

Commas: 81/80, 128/125, 540/539

POTE generator: ~36/35 = 27.864

Map: [<12 19 28 0 109|, <0 0 0 1 -2|]

EDOs: 36, 48c, 84c

## Catcall

Commas: 56/55, 81/80, 128/125

POTE generator: ~36/35 = 32.776

Map: [<12 19 28 0 8|, <0 0 0 1 1|]

EDOs: 12, 24, 36, 72ce

### 13-limit

Commas: 56/55, 66/65, 81/80, 105/104

POTE generator: ~36/35 = 37.232

Map: [<12 19 28 0 8 11|, <0 0 0 1 1 1|]

EDOs: 12f, 24, 36f, 60cf

## Duodecic

Commas: 56/55, 81/80, 91/90, 128/125

POTE generator: ~36/35 = 37.688

Map: [<12 19 28 0 8 78|, <0 0 0 1 1 -1|]

EDOs: 12, 24, 36, 60c

### 17-limit

Commas: 51/50, 56/55, 81/80, 91/90, 128/125

POTE generator: ~36/35 = 38.097

Map: [<12 19 28 0 8 78 49|, <0 0 0 1 1 -1 0|]

EDOs: 12, 24, 36, 60c

### 19-limit

Commas: 51/50, 56/55, 76/75, 81/80, 91/90, 96/95

POTE generator: ~36/35 = 38.080

Map: [<12 19 28 0 8 78 49 51|, <0 0 0 1 1 -1 0 0|]

EDOs: 12, 24, 36, 60c

## Duodecim

Commas: 36/35, 50/49, 64/63

POTE generator: ~45/44 = 34.977

Map: [<12 19 28 34 0|, <0 0 0 0 1|]

EDOs: 12, 24d

# Omicronbeta temperament

Commas: 225/224, 243/242, 441/440, 4375/4356

Generator: ~13/8 = 837.814

Map: [<72 114 167 202 249 266|, <0 0 0 0 0 1|]

EDOs: 72, 144, 216c, 288cdf, 504bcdef

# Hours

Commas: 19683/19600, 33075/32768

POTE generator: ~225/224 = 2.100

Map: [<24 38 0 123 83|, <0 0 1 -1 0|]

Wedgie: <0 24 -24 38 -38 -123|

EDOs: 24, 48, 72, 312bd, 384bcd, 456bcd, 528bcd, 600bcd

## 11-limit

Commas: 243/242, 385/384, 9801/9800

POTE generator: ~225/224 = 2.161

Map: [<24 38 0 123 83|, <0 0 1 -1 0|]

EDOs: 24, 48, 72, 312bd, 384bcd, 456bcde, 528bcde