Keegic temperaments: Difference between revisions

Fredg999 category edits (talk | contribs)
 
(5 intermediate revisions by 4 users not shown)
Line 1: Line 1:
Keegic rank-two temperaments temper out the keega, {{monzo|-3 1 -3 3}} = 1029/1000, the difference three [[7/5]]s and perfect eleventh [[8/3]].
{{Technical data page}}
'''Keegic''' [[rank two temperament]]s temper out the keega, {{monzo|-3 1 -3 3}} = 1029/1000, the difference three [[7/5]]s and perfect eleventh [[8/3]].


Temperaments discussed elsewhere include [[Very low accuracy temperaments|antitonic]], [[Trienstonic clan|kangaroo]], [[Kleismic family|keemun]], [[Meantone family|liese]], [[Archytas clan|progress]], [[Mint temperaments|subklei]], and [[Marvel temperaments|triton]].
Temperaments discussed elsewhere include [[Very low accuracy temperaments|antitonic]], [[Trienstonic clan|kangaroo]], [[Kleismic family|keemun]], [[Meantone family|liese]], [[Archytas clan|progress]], [[Mint temperaments|subklei]], and [[Marvel temperaments|triton]].


== Aurora ==
== Aurora ==
The ''aurora'' temperament (13&amp;21) is very strongly related to the '''[[Logarithmic phi|golden father tuning]]''' (generator: <math>\frac{3-\sqrt{5}}{2}</math> octave = 458.3592135001 cents). It has a temperament structure superficially similar to [[Father family|father]], with extremely flat fourths (sub-fourths/ultra-major third) or sharp fifths (super-fifths/ultra-minor sixths). However, unlike father, 12 of these bad fourths reach a more in tune fifth, which is useful for creating resolutions when using a large enough gamut, such as the [[13L 8s]] MOS which has two good major &amp; minor chords.
: ''For the 5-limit version, see [[Diaschismic–gothmic equivalence continuum #Goldis]].''
 
The ''aurora'' temperament ({{nowrap| 13 & 21 }}) is very strongly related to the [[Logarithmic phi|golden oneirotonic tuning]] (generator: {{nowrap| (3 - sqrt(5))/2 }} octave = 458.3592135001 cents). It has a temperament structure superficially similar to [[father]], with extremely flat fourths (sub-fourths/ultra-major third) or sharp fifths (super-fifths/ultra-minor sixths). However, unlike father, 12 of these bad fourths reach a more in tune fifth, which is useful for creating resolutions when using a large enough gamut, such as the [[13L 8s]] mos which has two good major & minor chords.


Subgroup: 2.3.5.7
Subgroup: 2.3.5.7
Line 11: Line 14:


[[Mapping]]: [{{val|1 -3 5 7}}, {{val|0 12 -7 -11}}]
[[Mapping]]: [{{val|1 -3 5 7}}, {{val|0 12 -7 -11}}]
{{Multival|legend=1|12 -7 -11 -39 -51 -6}}


[[POTE generator]]: ~21/16 = 458.348
[[POTE generator]]: ~21/16 = 458.348


{{Val list|legend=1| 8bd, 13, 21, 34, 55, 89d, 144cdd }}
{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55, 89d, 144cdd }}


[[Badness]]: 0.242134
[[Badness]]: 0.242134
Line 29: Line 30:
POTE generator: ~21/16 = 458.413
POTE generator: ~21/16 = 458.413


Optimal GPV sequence: {{Val list| 8bd, 13, 21, 34, 55e, 89dee }}
{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55e, 89dee }}


Badness: 0.116654
Badness: 0.116654
Line 42: Line 43:
POTE generator: ~13/10 = 458.444
POTE generator: ~13/10 = 458.444


Optimal GPV sequence: {{Val list| 8bd, 13, 21, 34, 55e, 89deef }}
{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55e, 89deef }}


Badness: 0.066541
Badness: 0.066541
Line 55: Line 56:
POTE generator: ~13/10 = 458.444
POTE generator: ~13/10 = 458.444


Optimal GPV sequence: {{Val list| 8bd, 13, 21, 34, 55e, 89deef }}
{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55e, 89deef }}


Badness: 0.044148
Badness: 0.044148
Line 68: Line 69:
POTE generator: ~13/10 = 458.444
POTE generator: ~13/10 = 458.444


Optimal GPV sequence: {{Val list| 8bd, 13, 21, 34, 55eh, 89deefhh }}
{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55eh, 89deefhh }}


Badness: 0.037621
Badness: 0.037621
Line 81: Line 82:
POTE generator: ~13/10 = 458.430
POTE generator: ~13/10 = 458.430


Optimal GPV sequence: {{Val list| 8bd, 13, 21, 34, 55eh, 89deefhh }}
{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55eh, 89deefhh }}


Badness: 0.030236
Badness: 0.030236
Line 94: Line 95:
POTE generator: ~13/10 = 458.426
POTE generator: ~13/10 = 458.426


Optimal GPV sequence: {{Val list| 8bd, 13, 21, 34, 55eh, 89deefhh }}
{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55eh, 89deefhh }}


Badness: 0.025201
Badness: 0.025201


[[Category:Temperament collections]]
[[Category:Temperament collections]]
[[Category:Pages with mostly numerical content]]
[[Category:Keegic]]
[[Category:Keegic]]
[[Category:Rank 2]]
[[Category:Rank 2]]