Moctdelismic clan

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Revision as of 11:20, 10 January 2026 by Xenllium (talk | contribs) (Created page with "{{Technical data page}} The '''moctdelismic clan''' of rank-3 temperaments tempers out the moctdel comma, 1375/1372, the amount by which a stack of three 7/5s falls short of 11/4, one octave above 11/8. The second comma in the comma list determines how we extend the no-3 subgroup temperament to include the harmonic 3. Indra adds 540/539 as well as 3025/3024, prodigy adds 225/224 as well as 441/4...")
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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.

The moctdelismic clan of rank-3 temperaments tempers out the moctdel comma, 1375/1372, the amount by which a stack of three 7/5s falls short of 11/4, one octave above 11/8.

The second comma in the comma list determines how we extend the no-3 subgroup temperament to include the harmonic 3. Indra adds 540/539 as well as 3025/3024, prodigy adds 225/224 as well as 441/440, and agni adds 385/384 as well as 2401/2400. Dimcomp adds 6250/6237 as well as 9801/9800, splitting the octave in four.

Discussed elsewhere are:

Considered below are mendel (12 & 31 & 152) and moctpine (29 & 72 & 80), besides the no-3 subgroup temperament.

Moctdelic

Subgroup: 2.5.7.11

Comma list: 1375/1372

Subgroup-val mapping[1 0 0 2], 0 1 0 -3], 0 0 1 3]]

Sval mapping generators: ~2, ~5, ~7

Optimal tunings:

  • WE: ~2 = 1200.056¢, ~5 = 2785.862¢, ~7 = 3369.486¢
  • CWE: ~2 = 1200.000¢, ~5 = 2785.789¢, ~7 = 3369.416¢

Optimal ET sequence25, 29, 31, 37

Badness (Sintel): 0.110

Mendel

Subgroup: 2.3.5.7.11

Comma list: 1375/1372, 5632/5625

Mapping[1 0 2 1 -1], 0 1 1 3 6], 0 0 -3 -7 -12]]

Mapping generators: ~2, ~3, ~75/56

Optimal tunings:

  • WE: ~2 = 1199.840¢, ~3 = 1902.091¢, ~75/56 = 505.185¢
  • CWE: ~2 = 1200.000¢, ~3 = 1902.281¢, ~75/56 = 505.243¢

Optimal ET sequence12, 19e, 31, 90e, 109, 121, 140, 152, 292

Badness (Sintel): 1.202

Moctpine

Subgroup: 2.3.5.7.11

Comma list: 1375/1372, 4000/3993

Mapping[1 2 1 1 2], 0 -3 -1 -1 0], 0 0 3 4 3]]

Mapping generators: ~2, ~11/10, ~7/5

Optimal tunings:

  • WE: ~2 = 1199.975¢, ~11/10 = 165.985¢, ~7/5 = 583.872¢
  • CWE: ~2 = 1200.000¢, ~11/10 = 165.994¢, ~7/5 = 583.877¢

Optimal ET sequence29, 37, 43, 72, 152, 224

Badness (Sintel): 1.275