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Keegic temperaments: Difference between revisions

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{{Technical data page}}
{{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]].
This is a collection of rank-2 '''keegic temperaments''', which [[tempering out|temper out]] the [[keega]] ([[ratio]]: 1029/1000, {{monzo|legend=1| -3 1 -3 3 }}), the difference a stack of three [[10/7]]'s and the [[3/1|3rd harmonic]].


Temperaments discussed elsewhere include [[Very low accuracy temperaments|antitonic]], [[Trienstonic clan|kangaroo]], [[Kleismic family|keemun]], [[Meantone family|liese]], [[Archytas clan|progress]], [[Mint temperaments|subklei]], [[Marvel temperaments|triton]], [[Augmented family|trisected]], and [[Sensamagic clan|xenia]].
Temperaments discussed elsewhere include [[Very low accuracy temperaments|antitonic]], [[Trienstonic clan|kangaroo]], [[Kleismic family|keemun]], [[Meantone family|liese]], [[Archytas clan|progress]], [[Mint temperaments|subklei]], [[Marvel temperaments|triton]], [[Augmented family|trisected]], and [[Sensamagic clan|xenia]].
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: ''For the 5-limit version, see [[Diaschismic–gothmic equivalence continuum #Goldis]].''
: ''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.
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 (subfourths/ultramajor third) or sharp fifths (superfifths/ultraminor 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


[[Comma list]]: 1029/1000, 28672/28125
[[Comma list]]: 1029/1000, 28672/28125


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


[[POTE generator]]: ~21/16 = 458.348
[[Optimal tuning]] ([[POTE]]): ~2 = 1200.000{{c}}, ~21/16 = 458.348{{c}}


{{Optimal ET sequence|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]] (Smith): 0.242134


=== 11-limit ===
=== 11-limit ===
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Comma list: 56/55, 1029/1000, 5632/5625
Comma list: 56/55, 1029/1000, 5632/5625


Mapping: [{{val|1 -3 5 7 5}}, {{val|0 12 -7 -11 -4}}]
Mapping: {{mapping| 1 -3 5 7 5 | 0 12 -7 -11 -4 }}


POTE generator: ~21/16 = 458.413
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~21/16 = 458.413{{c}}


{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55e, 89dee }}
{{Optimal ET sequence|legend=0| 8bd, 13, 21, 34, 55e, 89dee }}


Badness: 0.116654
Badness (Smith): 0.116654


=== 13-limit ===
=== 13-limit ===
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Comma list: 56/55, 105/104, 512/507, 637/625
Comma list: 56/55, 105/104, 512/507, 637/625


Mapping: [{{val|1 -3 5 7 5 6}}, {{val|0 12 -7 -11 -4 -6}}]
Mapping: {{mapping| 1 -3 5 7 5 6 | 0 12 -7 -11 -4 -6 }}


POTE generator: ~13/10 = 458.444
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~13/10 = 458.444{{c}}


{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55e, 89deef }}
{{Optimal ET sequence|legend=0| 8bd, 13, 21, 34, 55e, 89deef }}


Badness: 0.066541
Badness (Smith): 0.066541


=== 17-limit ===
=== 17-limit ===
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Comma list: 56/55, 105/104, 170/169, 221/220, 375/374
Comma list: 56/55, 105/104, 170/169, 221/220, 375/374


Mapping: [{{val|1 -3 5 7 5 6 6}}, {{val|0 12 -7 -11 -4 -6 -5}}]
Mapping: {{mapping| 1 -3 5 7 5 6 6 | 0 12 -7 -11 -4 -6 -5 }}


POTE generator: ~13/10 = 458.444
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~13/10 = 458.444{{c}}


{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55e, 89deef }}
{{Optimal ET sequence|legend=0| 8bd, 13, 21, 34, 55e, 89deef }}


Badness: 0.044148
Badness (Smith): 0.044148


=== 19-limit ===
=== 19-limit ===
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Comma list: 56/55, 76/75, 105/104, 170/169, 190/187, 221/220
Comma list: 56/55, 76/75, 105/104, 170/169, 190/187, 221/220


Mapping: [{{val|1 -3 5 7 5 6 6 5}}, {{val|0 12 -7 -11 -4 -6 -5 -2}}]
Mapping: {{mapping| 1 -3 5 7 5 6 6 5 | 0 12 -7 -11 -4 -6 -5 -2 }}


POTE generator: ~13/10 = 458.444
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~13/10 = 458.444{{c}}


{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55eh, 89deefhh }}
{{Optimal ET sequence|legend=0| 8bd, 13, 21, 34, 55eh, 89deefhh }}


Badness: 0.037621
Badness (Smith): 0.037621


=== 23-limit ===
=== 23-limit ===
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Comma list: 56/55, 76/75, 105/104, 161/160, 170/169, 190/187, 221/220
Comma list: 56/55, 76/75, 105/104, 161/160, 170/169, 190/187, 221/220


Mapping: [{{val|1 -3 5 7 5 6 6 5 3}}, {{val|0 12 -7 -11 -4 -6 -5 -2 4}}]
Mapping: {{mapping| 1 -3 5 7 5 6 6 5 3 | 0 12 -7 -11 -4 -6 -5 -2 4 }}


POTE generator: ~13/10 = 458.430
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~13/10 = 458.430{{c}}


{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55eh, 89deefhh }}
{{Optimal ET sequence|legend=0| 8bd, 13, 21, 34, 55eh, 89deefhh }}


Badness: 0.030236
Badness (Smith): 0.030236


=== 29-limit ===
=== 29-limit ===
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Comma list: 56/55, 76/75, 105/104, 116/115, 145/143, 161/160, 170/169, 221/220
Comma list: 56/55, 76/75, 105/104, 116/115, 145/143, 161/160, 170/169, 221/220


Mapping: [{{val|1 -3 5 7 5 6 6 5 3 6}}, {{val|0 12 -7 -11 -4 -6 -5 -2 4 -3}}]
Mapping: {{mapping| 1 -3 5 7 5 6 6 5 3 6 | 0 12 -7 -11 -4 -6 -5 -2 4 -3 }}


POTE generator: ~13/10 = 458.426
Optimal tuning (POTE): ~2 = 1200.000{{c}}, ~13/10 = 458.426{{c}}


{{Optimal ET sequence|legend=1| 8bd, 13, 21, 34, 55eh, 89deefhh }}
{{Optimal ET sequence|legend=0| 8bd, 13, 21, 34, 55eh, 89deefhh }}


Badness: 0.025201
Badness (Smith): 0.025201


[[Category:Keegic temperaments| ]] <!-- main article -->
[[Category:Temperament collections]]
[[Category:Temperament collections]]
[[Category:Keegic]]
[[Category:Rank 2]]
[[Category:Rank 2]]
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