Meantone family: Difference between revisions

→Dequarter: improve keys; normalize the mapping
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* [[Godzilla]] → [[Slendro clan #Godzilla|Slendro clan]]
* [[Godzilla]] → [[Slendro clan #Godzilla|Slendro clan]]
* [[Mothra]] → [[Gamelismic clan #Mothra|Gamelismic clan]]
* [[Mothra]] → [[Gamelismic clan #Mothra|Gamelismic clan]]
* [[Mohaha]] → [[Neutral clan #Neutral|Neutral clan]]


The rest are considered below.
The rest are considered below.
=== Mohaha ===
{{See also| No-sevens subgroup temperaments #Mohaha }}
Mohaha is the 2.3.5.11 subgroup temperament with a generator of a neutral third, two of which make up a fifth, and which can be taken to represent 11/9. Mohaha can be thought of, intuitively, as "meantone with quartertones"; as is the 3/2 generator subdivided in half, so is the [[~]][[25/24]] chromatic semitone divided into two equal ~[[33/32]] quarter tones (in the 2.3.5.11 subgroup). Within this paradigm, mohaha is the temperament that splits the 3/2 into two equal 11/9's, that splits the 6/5 into two equal 11/10~12/11's, and that maps four 3/2's to 5/1. It has a heptatonic mos with three larger steps and four smaller ones, going [[4L 3s|sLsLsLs]]. Taking septimal meantone mapping of 7 leads to [[#Migration]], flattone mapping of 7 leads to [[#Ptolemy]], and dominant mapping of 7 leads to [[#Neutrominant]].
[[Subgroup]]: 2.3.5.11
[[Comma list]]: 81/80, 121/120
{{Mapping|legend=2| 1 1 0 2 | 0 2 8 5 }}
: sval mapping generators: ~2, ~11/9
{{Mapping|legend=3| 1 1 0 0 2 | 0 2 8 0 5 }}
: gencom: [2 11/9; 81/80 121/120]
[[Optimal tuning]] ([[CTE]]): ~2 = 1\1, ~11/9 = 348.8296
{{Optimal ET sequence|legend=1| 7, 17c, 24, 31, 69e, 100e, 131bee }}
Scales: [[mohaha7]], [[mohaha10]]
==== Mohoho ====
Subgroup: 2.3.5.11.13
Comma list: 66/65, 81/80, 121/120
Sval mapping: {{mapping| 1 1 0 2 4| 0 2 8 5 -1 }}
: sval mapping generators: ~2, ~11/9
Gencom mapping: {{mapping| 1 1 0 0 2 4 | 0 2 8 0 5 -1 }}
: gencom: [2 11/9; 66/65 81/80 121/120]
Optimal tuning (CTE): ~2 = 1\1, ~11/9 = 348.8794
{{Optimal ET sequence|legend=1| 7, 17c, 24, 31, 55 }}
Scales: [[mohaha7]], [[mohaha10]]


=== Dequarter ===
=== Dequarter ===
Line 976: Line 935:


Badness: 0.026288
Badness: 0.026288
=== Migration ===
Subgroup: 2.3.5.7.11
Comma list: 81/80, 121/120, 126/125
Mapping: {{mapping| 1 1 0 -3 2 | 0 2 8 20 5 }}
: mapping generators: ~2, ~11/9
Optimal tuning (CTE): ~2 = 1\1, ~11/9 = 348.5324
{{Optimal ET sequence|legend=1| 7d, 24d, 31, 100de, 131bdee, 162bdee }}
Badness: 0.025516


==== 13-limit ====
==== 13-limit ====
Line 1,175: Line 1,119:


Scales: [[flattone12]]
Scales: [[flattone12]]
=== Ptolemy ===
Subgroup: 2.3.5.7.11
Comma list: 81/80, 121/120, 525/512
Mapping: {{mapping| 1 1 0 8 2 | 0 2 8 -18 5 }}
: mapping generators: ~2, ~11/9
Optimal tuning (POTE): ~2 = 1\1, ~11/9 = 346.922
{{Optimal ET sequence|legend=1| 7, 31dd, 38d, 45e, 83bcddee }}
Badness: 0.058785


==== 13-limit ====
==== 13-limit ====
Line 1,421: Line 1,350:
Badness: 0.021098
Badness: 0.021098


=== Neutrominant ===
<span style="display: block; text-align: right;">[[:de:maqamisch|Deutsch]]</span>
{{Main| Neutrominant }}
The neutrominant temperament (formerly ''maqamic'' temperament) has a hemififth generator (~11/9) and tempers out 36/35 and 121/120. It makes the most sense if viewed as an adaptive temperament, whereby 7/4 and 9/5 simply share an equivalence class in the resulting scales, but don't need to share a particular tempered "middle-of-the-road" intonation.
Subgroup: 2.3.5.7.11
Comma list: 36/35, 64/63, 121/120
Mapping: {{mapping| 1 1 0 4 2 | 0 2 8 -4 5 }}
: mapping generators: ~2, ~11/9
Optimal tuning (POTE): ~2 = 1\1, ~11/9 = 350.934
{{Optimal ET sequence|legend=1| 7, 17c, 24d, 41cd }}
Badness: 0.040240
==== 13-limit ====
Subgroup: 2.3.5.7.11.13
Comma list: 36/35, 64/63, 66/65, 121/120
Mapping: {{mapping| 1 1 0 4 2 4 | 0 2 8 -4 5 -1 }}
Optimal tuning (POTE): ~2 = 1\1, ~11/9 = 350.816
{{Optimal ET sequence|legend=1| 7, 17c, 24d, 41cd }}


Badness: 0.027214


== Sharptone ==
== Sharptone ==