Limmic temperaments: Difference between revisions

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{{Technical data page}}
{{Technical data page}}
'''Limmic temperaments''' are [[temperament]]s that [[temper out]] the Pythagorean limma, [[256/243]]. As a consequence, [[3/2]] is always represented by 3<span style="font-family:'Arial', sans-serif">\</span>5, 720 [[cent]]s assuming pure octaves. While quite sharp, this is close enough to a just fifth to serve as a fifth, and some people are fond of it.
'''Limmic temperaments''' are [[temperament]]s that [[temper out]] the Pythagorean limma, [[256/243]]. As a consequence, [[3/2]] is always represented by 3\5, 720 [[cent]]s assuming pure octaves. While quite sharp, this is close enough to a just fifth to serve as a fifth, and some people are fond of it.


== Blackwood ==
== Blackwood ==
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Blackwood is the 5edo [[circle of fifths]] with an independent dimension for the harmonic 5. It can be described as the {{nowrap| 5 & 10 }} temperament. [[15edo]] is an obvious tuning.  
Blackwood is the 5edo [[circle of fifths]] with an independent dimension for the harmonic 5. It can be described as the {{nowrap| 5 & 10 }} temperament. [[15edo]] is an obvious tuning.  


The only extension to the 7-limit that makes any sense is to map the [[7/4|harmonic seventh]] to 4<span style="font-family:'Arial', sans-serif">\</span>5, tempering out [[28/27]], [[49/48]], and [[64/63]]. This is known as ''blacksmith'' in earlier materials, including [[Graham Breed]]'s temperament finder.  
The only extension to the 7-limit that makes any sense is to map the [[7/4|harmonic seventh]] to 4\5, tempering out [[28/27]], [[49/48]], and [[64/63]]. This is known as ''blacksmith'' in earlier materials, including [[Graham Breed]]'s temperament finder.  


=== 5-limit ===
=== 5-limit ===
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{{Mapping|legend=1| 5 8 0 | 0 0 1 }}
{{Mapping|legend=1| 5 8 0 | 0 0 1 }}


: Mapping generators: ~9/8, ~5
: mapping generators: ~9/8, ~5


[[Optimal tuning]]s:  
[[Optimal tuning]]s:  
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== Blackweed ==
== Blackweed ==
Blackweed is a variant of blackwood as it tempers out 256/243 alike but in the 2.3.11/7 [[subgroup]]. 20edo is close to the optimum, which has 4<span style="font-family:'Arial', sans-serif">\</span>20 as the period and 420¢ as the generator.
Blackweed is a variant of blackwood as it tempers out 256/243 alike but in the 2.3.11/7 [[subgroup]]. 20edo is close to the optimum, which has 4\20 as the period and 420¢ as the generator.


[[Subgroup]]: 2.3.11/7
[[Subgroup]]: 2.3.11/7