Miracle: Difference between revisions

m Target tunings: consolidate tables for readability
m Cleanup on infobox
 
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[[de:Miracle]]
{{Interwiki
{{Infobox Regtemp
| en = Miracle
| de = Miracle
}}
{{Infobox regtemp
| Title = Miracle
| Title = Miracle
| Subgroups = 2.3.5.7, 2.3.5.7.11
| Subgroups = 2.3.5.7, 2.3.5.7.11
| Comma basis = [[225/224]], [[1029/1024]] (7-limit); <br> [[225/224]], [[243/242]], [[385/384]] (11-limit)
| Comma basis = [[225/224]], [[1029/1024]] (7-limit); <br>[[225/224]], [[243/242]], [[385/384]] (11-limit)
| Edo join 1 = 31 | Edo join 2 = 41
| Edo join 1 = 31 | Edo join 2 = 41
| Generator = 15/14 | Generator tuning = 116.7 | Optimization method = CTE
| Generators = 15/14 | Generators tuning = 116.7 | Optimization method = CTE
| MOS scales = …, [[1L 9s]], [[10L 1s]], [[10L 11s]], [[10L 21s]]
| MOS scales = …, [[1L 9s]], [[10L 1s]], [[10L 11s]], [[10L 21s]]
| Mapping = 1; 6 -7 -2 15
| Mapping = 1; 6 -7 -2 15
| Pergen = (P8, P5/6)
| Pergen = (P8, P5/6)
| Odd limit 1 = 7 | Mistuning 1 = 2.43 | Complexity 1 = 31
| Odd limit 1 = 9 | Mistuning 1 = 3.32 | Complexity 1 = 21
| Odd limit 2 = (11-limit) 21 | Mistuning 2 = 4.86 | Complexity 2 = 72
| Odd limit 2 = 11-limit 21 | Mistuning 2 = 4.86 | Complexity 2 = 31
}}
}}
{{Wikipedia|Miracle temperament}}
{{Wikipedia|Miracle temperament}}
'''Miracle''' is a [[regular temperament]] discovered by [[George Secor]] in 1974 which splits a tempered [[3/2]] into six [[generator]]s, called ''[[secor]]s'' (after George), that serve as both [[15/14]] and [[16/15]] semitones. A stack of two generators represents [[8/7]], and a stack of seven generators represents [[8/5]]. It is a member of both the [[marvel temperaments]], by [[tempering out]] [[225/224]], and the [[gamelismic clan]], by tempering out [[1029/1024]]. It extends naturally to the [[11-limit]] by treating the neutral third from three generators as [[11/9]], tempering out [[243/242]], [[385/384]], [[441/440]], and [[540/539]].  
'''Miracle''' is a [[regular temperament]] discovered by [[George Secor]] in 1974 which splits a tempered [[3/2]] into six [[generator]]s, called ''[[secor]]s'' (after George), that serve as both [[15/14]] and [[16/15]] semitones. A stack of two generators represents [[8/7]], and a stack of seven generators represents [[8/5]]. It is a member of both the [[marvel temperaments]], by [[tempering out]] [[225/224]], and the [[gamelismic clan]], by tempering out [[1029/1024]]. It is naturally a full [[11-limit]] temperament, treating the neutral third from three generators as [[11/9]], tempering out [[243/242]], [[385/384]], [[441/440]], and [[540/539]]. It is supported by the highly notable [[EDO|edos]] [[31edo|31]], [[41edo|41]], and [[72edo|72]], with 72edo being an especially good tuning. (There is an alternative mapping for 11 known as [[revelation]], but there is little reason to use it unless you are using [[31edo]], in which case it is identical to miracle anyway.)


Miracle is an exceptionally efficient linear temperament. It is quite accurate, with [[TOP]] error only 0.63 [[cent]]s/[[octave]], meaning intervals of the [[11-odd-limit]] [[tonality diamond]] are represented with only one or two cents of error. Yet it is also very low-complexity (efficient), as evidenced by the high density of 11-odd-limit ratios in the [[#Interval chain]]. At least one inversion of every interval in the 11-odd-limit tonality diamond is represented within 22 secors of the starting value.  
Miracle is an exceptionally efficient linear temperament. It is quite accurate, with [[TOP]] error only 0.63 [[cent]]s/[[octave]], meaning intervals of the [[11-odd-limit]] [[tonality diamond]] are represented with only one or two cents of error. Yet it is also very low-complexity (efficient), as evidenced by the high density of 11-odd-limit ratios in the [[#Interval chain]]. At least one inversion of every interval in the 11-odd-limit tonality diamond is represented within 22 secors of the starting value.  


Some temperaments have 11/9 as a neutral third, meaning it is exactly half of a 3/2 (tempering out 243/242), and other temperaments have 8/7 as exactly a third of 3/2. Miracle is distinguished by doing both of these things at the same time, so 3/2 is divided into six equal parts.  
[[Rastmic clan|Some temperaments]] have 11/9 as a neutral third, meaning it is exactly half of a 3/2 (tempering out 243/242), and [[Gamelismic clan|other temperaments]] have 8/7 as exactly a third of 3/2. Miracle is distinguished by doing both of these things at the same time, so 3/2 is divided into six equal parts.  


Miracle can also be thought of as a [[cluster temperament]] with 10 clusters of notes in an octave. The small chroma interval between adjacent notes in each cluster is very versatile, representing [[45/44]]~[[49/48]]~[[50/49]]~[[55/54]]~[[56/55]]~[[64/63]] all [[tempered]] together.
Miracle can also be thought of as a [[cluster temperament]] with 10 clusters of notes in an octave. The small chroma interval between adjacent notes in each cluster is very versatile, representing [[45/44]]~[[49/48]]~[[50/49]]~[[55/54]]~[[56/55]]~[[64/63]] all [[tempered]] together.


See [[Miracle extensions]] for [[13-limit]] and [[17-limit]] extensions. See [[Gamelismic clan #Miracle]] for technical data.  
See [[Miracle extensions]] for [[13-limit]] and [[17-limit]] extensions. See [[Gamelismic clan #Miracle]] for technical data.


== Interval chain ==
== Interval chain ==
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|-
|-
! rowspan="2" |  
! rowspan="2" |  
! colspan="2" | Euclidean
! colspan="3" | Euclidean
|-
|-
! Constrained
! Constrained
! Constrained & skewed
! Constrained & skewed
! Destretched
|-
|-
! Equilateral
! Equilateral
| CEE: ~15/14 = 116.516{{c}}
| CEE: ~15/14 = 116.5155{{c}}
| CSEE: ~15/14 = 116.561{{c}}
| CSEE: ~15/14 = 116.5612{{c}}
| POEE: ~15/14 = 116.6465{{c}}
|-
|-
! Tenney
! Tenney
| CTE: ~15/14 = 116.677{{c}}
| CTE: ~15/14 = 116.6772{{c}}
| CWE: ~15/14 = 116.676{{c}}
| CWE: ~15/14 = 116.6756{{c}}
| POTE: ~15/14 = 116.6752{{c}}
|-
|-
! Benedetti, <br>Wilson
! Benedetti, <br>Wilson
| CBE: ~15/14 = 116.730{{c}}
| CBE: ~15/14 = 116.7297{{c}}
| CSBE: ~15/14 = 116.714{{c}}
| CSBE: ~15/14 = 116.7136{{c}}
| POBE: ~15/14 = 116.6903{{c}}
|}
|}


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|-
|-
! rowspan="2" |  
! rowspan="2" |  
! colspan="2" | Euclidean
! colspan="3" | Euclidean
|-
|-
! Constrained
! Constrained
! Constrained & skewed
! Constrained & skewed
! Destretched
|-
|-
! Equilateral
! Equilateral
| CEE: ~15/14 = 116.687{{c}}
| CEE: ~15/14 = 116.6868{{c}}
| CSEE: ~15/14 = 116.630{{c}}
| CSEE: ~15/14 = 116.6304{{c}}
| POEE: ~15/14 = 116.5817{{c}}
|-
|-
! Tenney
! Tenney
| CTE: ~15/14 = 116.711{{c}}
| CTE: ~15/14 = 116.7112{{c}}
| CWE: ~15/14 = 116.647{{c}}
| CWE: ~15/14 = 116.6469{{c}}
| POTE: ~15/14 = 116.6327{{c}}
|-
|-
! Benedetti, <br>Wilson
! Benedetti, <br>Wilson
| CBE: ~15/14 = 116.736{{c}}
| CBE: ~15/14 = 116.7355{{c}}
| CSBE: ~15/14 = 116.677{{c}}
| CSBE: ~15/14 = 116.6768{{c}}
| POBE: ~15/14 = 116.6643{{c}}
|}
|}