Canousmic temperaments: Difference between revisions

+ link to satin
- data for extensions beyond 31. Re-phrasing description
 
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Superlimmal is essentially an 80-form, and may be described as the {{nowrap| 80 & 311 }} temperament. It uses an ever slightly sharpened [[27/25|large limma]] as the generator, nine exceed the octave by [[126/125]]. Note that in the data that follow, the generator is its [[octave complement]], [[~]][[50/27]], so that 57 of them [[octave reduction|octave reduced]] make the [[3/2|perfect fifth]].  
Superlimmal is essentially an 80-form, and may be described as the {{nowrap| 80 & 311 }} temperament. It uses an ever slightly sharpened [[27/25|large limma]] as the generator, nine exceed the octave by [[126/125]]. Note that in the data that follow, the generator is its [[octave complement]], [[~]][[50/27]], so that 57 of them [[octave reduction|octave reduced]] make the [[3/2|perfect fifth]].  


Superlimmal gets all the primes up to [[29/1|29]] reasonably covered, but is acceptable just as a 13-limit microtemperament, given a relatively simple [[comma basis]]. It can also be extended to include prime [[37/1|37]] by tempering out ([[27/25]])/([[40/37]]) = [[1000/999]], where 40/37 is notably the mediant of [[27/25]] and [[13/12]], which could be interpreted as an explanation of the sharpened limma.  
Superlimmal gets all the primes up to [[29/1|29]] reasonably covered, but is acceptable just as a 13-limit microtemperament, given a relatively simple [[comma basis]]. It can also be extended to include prime [[37/1|37]] by mapping it to 87 generator steps, tempering out ([[27/25]])/([[40/37]]) = [[1000/999]]. Since 40/37 is the mediant of [[27/25]] and [[13/12]], this extension further consolidates the sharpened limma.  


[[Subgroup]]: 2.3.5.7
[[Subgroup]]: 2.3.5.7
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Badness (Sintel): 1.09
Badness (Sintel): 1.09
=== No-31's 37-limit ===
Subgroup: 2.3.5.7.11.13.17.19.23.29.37
Comma list: 595/594, 760/759, 784/783, 925/924, 969/968, 1000/999, 1045/1044, 1105/1104, 1275/1274
Mapping: {{mapping| 1 -49 -74 -117 -56 25 -11 -49 -15 -83 -72 | 0 57 86 135 67 -24 17 60 22 99 87 }}
Optimal tuning:
* WE: ~2 = 1199.9549{{c}}, ~37/20 = 1064.9140{{c}}
* CWE: ~2 = 1200.0000{{c}}, ~37/20 = 1064.9538{{c}}
{{Optimal ET sequence|legend=0| 80, 231, 311 }}
Badness (Sintel): 1.06


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