Meantone family: Difference between revisions

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=Injera=
=Injera=
[[Comma|Comma]]s: 50/49, 81/80
[[Comma]]s: 50/49, 81/80


The wedgie for injera is <<2 8 8 8 7 -4||, which tells us it has a half-octave period and a generator which can be taken as a fifth or fourth, but also as a 15/14 semitone difference between a half-octave and a perfect fifth. Injera tempers out 50/49, equating 7/5 with 10/7 and giving a tritone of half an octave. A major third up from this tritone is the 7/4. [[38edo|38edo]], which is two parallel [[19edo|19edo]]s, is an excellent tuning for injera.
The wedgie for injera is <<2 8 8 8 7 -4||, which tells us it has a half-octave period and a generator which can be taken as a fifth or fourth, but also as a 15/14 semitone difference between a half-octave and a perfect fifth. Injera tempers out 50/49, equating 7/5 with 10/7 and giving a tritone of half an octave. A major third up from this tritone is the 7/4. [[38edo]], which is two parallel [[19edo]]s, is an excellent tuning for injera.


[http://tech.groups.yahoo.com/group/tuning-math/message/3091 Origin of the name]
[http://tech.groups.yahoo.com/group/tuning-math/message/3091 Origin of the name]
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Map: [<2 0 -8 -7|, <0 1 4 4|]
Map: [<2 0 -8 -7|, <0 1 4 4|]


[[wedgie|Wedgie]]: <<2 8 8 8 7 -4||
[[Wedgie]]: <<2 8 8 8 7 -4||


EDOs: [[12edo|12]], [[26edo|26]], [[38edo|38]], [[102edo|102bcd]], [[140edo|140bcd]], [[178edo|178bcd]]
EDOs: [[12edo|12]], [[26edo|26]], [[38edo|38]], [[102edo|102bcd]], [[140edo|140bccd]], [[178edo|178bbccdd]]


[[Badness|Badness]]: 0.0311
[[Badness]]: 0.0311


== Music ==
==Music==
* [http://micro.soonlabel.com/gene_ward_smith/Others/Igs/Two%20Pairs%20of%20Socks.mp3 Two Pairs of Socks] (in [[26edo]]) by [[Igliashon Jones]]
* [http://micro.soonlabel.com/gene_ward_smith/Others/Igs/Two%20Pairs%20of%20Socks.mp3 Two Pairs of Socks] (in [[26edo]]) by [[Igliashon Jones]]
* [http://micro.soonlabel.com/gene_ward_smith/Others/Curley/Zach%20Curley%20-%20Injera%20Jam.mp3 Injera Jam] (in [[26edo]]) by [[Zach Curley]]
* [http://micro.soonlabel.com/gene_ward_smith/Others/Curley/Zach%20Curley%20-%20Injera%20Jam.mp3 Injera Jam] (in [[26edo]]) by [[Zach Curley]]
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Map: [<2 0 -8 -7 -12|, <0 1 4 4 6|]
Map: [<2 0 -8 -7 -12|, <0 1 4 4 6|]


EDOs: 12, 14c, 26. 90bce, 116bce
EDOs: 12, 14c, 26, 90bce, 116bcce


Badness: 0.0231
Badness: 0.0231


==13-limit==
==13-limit==
Commas: 45/44, 50/49, 81/80, 78/77
Commas: 45/44, 50/49, 78/77, 81/80


valid range: 692.308 (26)
valid range: 692.308 (26)
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Map: [<2 0 -8 -7 -12 -21|, <0 1 4 4 6 9|]
Map: [<2 0 -8 -7 -12 -21|, <0 1 4 4 6 9|]


EDOs: 26, 104bcf
EDOs: 12f, 14cf, 26, 38e


Badness: 0.0216
Badness: 0.0216


==Enjera==
==Enjera==
Commas: 27/26, 40/39, 45/44, 99/98
Commas: 27/26, 40/39, 45/44, 50/49


POTE generator: ~3/2 = 694.121
POTE generator: ~3/2 = 694.121
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Map: [<2 0 -8 -7 -12 -2|, <0 1 4 4 6 3|]
Map: [<2 0 -8 -7 -12 -2|, <0 1 4 4 6 3|]


EDOs: 12f, 26f, 38ef
EDOs: 12f, 14c, 26f, 38eff


Badness: 0.0265
Badness: 0.0265
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Map: [<2 0 -8 -7 10|, <0 1 4 4 -1|]
Map: [<2 0 -8 -7 10|, <0 1 4 4 -1|]


EDOs: 12e, 14c, 26e, 40ce
EDOs: 12e, 14c, 26e, 40cee


Badness: 0.0386
Badness: 0.0386
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Map: [<2 0 -8 -7 7|, <0 1 4 4 0|]
Map: [<2 0 -8 -7 7|, <0 1 4 4 0|]


EDOs: 12
EDOs: 2cd, 12, 14ce


Badness: 0.0431
Badness: 0.0431