Greenwoodmic temperaments

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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.

This is a collection of rank-2 greenwoodmic temperaments, which temper out 405/392, the greenwoodma.

Temperaments discussed elsewhere are

Considered below are secund and semishallowtone.

Secund

Subgroup: 2.3.5.7

Comma list: 405/392, 525/512

Mapping[1 1 3 2], 0 5 -6 7]]

mapping generators: ~2, ~16/15

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~16/15 = 138.454 ¢
error map: 0.000 -9.684 -17.038 +0.353]
  • POTE: ~2 = 1200.000 ¢, ~16/15 = 137.958 ¢
error map: 0.000 -12.167 -14.059 -3.123]

Optimal ET sequence9, 17, 26, 61bc, 87bcc

Badness (Smith): 0.089840

11-limit

Subgroup: 2.3.5.7.11

Comma list: 45/44, 99/98, 385/384

Mapping: [1 1 3 2 3], 0 5 -6 7 4]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~12/11 = 138.420 ¢
  • POTE: ~2 = 1200.000 ¢, ~12/11 = 137.900 ¢

Optimal ET sequence: 9, 17, 26, 61bc

Badness (Smith): 0.042562

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 27/26, 45/44, 99/98, 385/384

Mapping: [1 1 3 2 3 2], 0 5 -6 7 4 15]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~12/11 = 137.455 ¢
  • POTE: ~2 = 1200.000 ¢, ~12/11 = 136.937 ¢

Optimal ET sequence: 9, 35

Badness (Smith): 0.049684

Secundly

Subgroup: 2.3.5.7.11.13

Comma list: 45/44, 65/64, 78/77, 99/98

Mapping: [1 1 3 2 3 3], 0 5 -6 7 4 6]]

Optimal tunings:

  • CTE: ~2 = 1200.000 ¢, ~13/12 = 138.583 ¢
  • POTE: ~2 = 1200.000 ¢, ~13/12 = 137.917 ¢

Optimal ET sequence: 9, 17, 26, 61bcf

Badness (Smith): 0.026212

Semishallowtone

Subgroup: 2.3.5.7

Comma list: 405/392, 35721/32768

Mapping[2 0 36 15], 0 1 -10 -3]]

mapping generators: ~189/128, ~3

Optimal tunings:

  • CTE: ~189/128 = 600.000 ¢, ~3/2 = 681.532 ¢ (~64/63 = 81.532 ¢)
error map: 0.000 -20.423 -1.629 -13.421]
  • CWE: ~189/128 = 600.000 ¢, ~3/2 = 682.650 ¢ (~64/63 = 82.650 ¢)
error map: 0.000 -19.305 -12.811 -16.775]

Optimal ET sequence14c, 44bd, 58bcd

Badness (Sintel): 8.42

11-limit

Subgroup: 2.3.5.7.11

Comma list: 45/44, 99/98, 35721/32768

Mapping: [2 0 36 15 32], 0 1 -10 -3 -8]]

Optimal tunings:

  • CTE: ~189/128 = 600.000 ¢, ~3/2 = 681.438 ¢ (~64/63 = 81.438 ¢)
  • CWE: ~189/128 = 600.000 ¢, ~3/2 = 682.724 ¢ (~64/63 = 82.724 ¢)

Optimal ET sequence: 14c, 44bd, 58bcde, 72bbccddee

Badness (Sintel): 4.15

13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 27/26, 45/44, 99/98, 35721/32768

Mapping: [2 0 36 15 32 -2], 0 1 -10 -3 -8 3]]

Optimal tunings:

  • CTE: ~91/64 = 600.000 ¢, ~3/2 = 681.406 ¢ (~64/63 = 81.406 ¢)
  • CWE: ~91/64 = 600.000 ¢, ~3/2 = 682.168 ¢ (~64/63 = 82.168 ¢)

Optimal ET sequence: 14c, 30b

Badness (Sintel): 4.38