Subgroup temperaments: Difference between revisions

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+spog (2.15.55)
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{{Optimal ET sequence|legend=1| 5, 13, 31 }}
{{Optimal ET sequence|legend=1| 5, 13, 31 }}
== 2.15.55 subgroup ==
=== Spog ===
This temperament produces [[Slendro_clan#Superpelog|superpelog]]-like [[5L 4s|semiquartal]] scales while being more accurate ([[Subgroup temperaments#2.15.189.55.325.279|see]] rational approximations to their intervals).
[[Subgroup]]: 2.15.55
[[Comma list]]: [[100663296/100656875]]
{{Mapping|legend=2| 1 0 5 | 0 5 1 }}
[[Optimal tuning]] (subgroup [[CTE]]): ~55/32 = 937.655
[[Support]]ing [[ET]]s: 5, 9, 13[-15], 14, 19[+15], 23, 32, 37, 41, 50, 55, 64, 73, 78, 87, 96, 101, 105, 119, 128, 151, 183, 206, 311
==== 2.15.55.325 ====
[[Subgroup]]: 2.15.55.325
[[Comma list]]: [[4225/4224]], [[6656/6655]]
{{Mapping|legend=2| 1 0 5 6 | 0 5 1 3 }}
[[Optimal tuning]] (subgroup [[CTE]]): ~55/32 = 937.647
[[Support]]ing [[ET]]s: 5, 9, 13[-15], 14, 23, 32, 37, 41, 50, 55, 64, 73, 78, 87, 96, 101, 105, 119, 128, 151, 183, 206, 311
==== 2.15.189.55.325 ====
Related temperament: [[Lehmerismic_temperaments#Lux|lux]]
[[Subgroup]]: 2.15.189.55.325
[[Comma list]]: [[2080/2079]], [[3025/3024]], [[4096/4095]]
{{Mapping|legend=2| 1 0 6 5 6 | 0 5 2 1 3 }}
[[Optimal tuning]] (subgroup [[CTE]]): ~55/32 = 937.677
[[Support]]ing [[ET]]s: 5, 9, 14, 23, 32, 37, 41, 50, 55, 64, 73, 78, 87, 96, 101, 105, 119, 128, 151, 183, 206, 311
==== 2.15.189.55.325.279 ====
Here are rational approximations to the intervals of the semiquartal scale.
[[Modal_UDP_notation#Generalizing_to_arbitrary_MOS_scales:_bright_and_dark_generators_.28chroma-positive_and_chroma-negative.29|Chroma-positive]]: 12/11, 25/21, 33/26, 18/13, 65/44 ~ 96/65, 50/31, 55/32, 15/8.
Chroma-negative: 16/15, 64/55, 31/25, 65/48 ~ 88/65, 13/9, 52/33, 42/25, 11/6.
[[Subgroup]]: 2.15.189.55.325.279
[[Comma list]]: [[2016/2015]], [[2080/2079]], [[3025/3024]], [[4096/4095]]
{{Mapping|legend=2| 1 0 6 5 6 5 | 0 5 2 1 3 4 }}
[[Optimal tuning]] (subgroup [[CTE]]): ~55/32 = 937.666
[[Support]]ing [[ET]]s: 5, 9, 14, 23, 32, 37, 41, 50, 55, 64, 73, 78, 87, 96, 101, 105, 119, 128, 151, 183, 206, 311


== 4.3.5 subgroup ==
== 4.3.5 subgroup ==