Ragismic microtemperaments: Difference between revisions
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[[Wedgie]]: <<18 27 18 1 -22 -34|| | [[Wedgie]]: <<18 27 18 1 -22 -34|| | ||
Mapping generators: ~27/25, ~5/3 | |||
[[POTE Tuning|POTE generators]]: ~36/35 = 49.0205; ~10/9 = 182.354; ~6/5 = 315.687; ~49/40 = 350.980 | [[POTE Tuning|POTE generators]]: ~36/35 = 49.0205; ~10/9 = 182.354; ~6/5 = 315.687; ~49/40 = 350.980 | ||
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Tuning ranges: | Tuning ranges: | ||
* valid range: [13.333, 22.222] ( | * valid range: [13.333, 22.222] (1\90 to 1\54) | ||
* nice range: [17.304, 17.985] | * nice range: [17.304, 17.985] | ||
* strict range: [17.304, 17.985] | * strict range: [17.304, 17.985] | ||
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Tuning ranges: | Tuning ranges: | ||
* valid range: [16.667, 22.222] (72 to | * valid range: [16.667, 22.222] (1\72 to 1\54) | ||
* nice range: [17.304, 18.309] | * nice range: [17.304, 18.309] | ||
* strict range: [17.304, 18.309] | * strict range: [17.304, 18.309] | ||
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Tuning ranges: | Tuning ranges: | ||
* valid range: [48.485, 50.000] ( | * valid range: [48.485, 50.000] (4\99 to 3\72) | ||
* nice range: [48.825, 52.592] | * nice range: [48.825, 52.592] | ||
* strict range: [48.825, 50.000] | * strict range: [48.825, 50.000] | ||
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Tuning ranges: | Tuning ranges: | ||
* valid range: [48.485, 50.000] ( | * valid range: [48.485, 50.000] (4\99 to 3\72) | ||
* nice range: [46.363, 52.592] | * nice range: [46.363, 52.592] | ||
* strict range: [48.485, 50.000] | * strict range: [48.485, 50.000] | ||
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Enneadecal temperament tempers out the enneadeca, |-14 -19 19>, and as a consequence has a period of 1/19 octave. This is because the enneadeca is the amount by which nineteen just minor thirds fall short of an octave. If to this we add 4375/4374 we get the 7-limit temperament we are considering here, but note should be taken of the fact that it makes for a reasonable 5-limit microtemperament also, where the generator can be 25/24, 27/25, 10/9, 5/4 or 3/2. To this we may add possible 7-limit generators such as 225/224, 15/14 or 9/7. Since enneadecal tempers out 703125/702464, the amount by which 81/80 falls short of three stacked 225/224, we can equate the 225/224 generator with (81/80)^(1/3). This is the interval needed to adjust the 1/3 comma meantone flat fifths and major thirds of [[19edo]] up to just ones. [[171edo]] is a good tuning for either the 5 or 7 limits, and [[494edo]] shows how to extend the temperament to the 11 or 13 limit, where it is accurate but very complex. Fans of near-perfect fifths may want to use [[665edo]] for a tuning. | Enneadecal temperament tempers out the enneadeca, |-14 -19 19>, and as a consequence has a period of 1/19 octave. This is because the enneadeca is the amount by which nineteen just minor thirds fall short of an octave. If to this we add 4375/4374 we get the 7-limit temperament we are considering here, but note should be taken of the fact that it makes for a reasonable 5-limit microtemperament also, where the generator can be 25/24, 27/25, 10/9, 5/4 or 3/2. To this we may add possible 7-limit generators such as 225/224, 15/14 or 9/7. Since enneadecal tempers out 703125/702464, the amount by which 81/80 falls short of three stacked 225/224, we can equate the 225/224 generator with (81/80)^(1/3). This is the interval needed to adjust the 1/3 comma meantone flat fifths and major thirds of [[19edo]] up to just ones. [[171edo]] is a good tuning for either the 5 or 7 limits, and [[494edo]] shows how to extend the temperament to the 11 or 13 limit, where it is accurate but very complex. Fans of near-perfect fifths may want to use [[665edo]] for a tuning. | ||
[[Comma list]]: 4375/4374, 703125/702464 | |||
[[Mapping]]: [<19 0 14 -37|, <0 1 1 3|] | |||
[[Wedgie]]: <<19 19 57 -14 37 79|| | |||
Mapping generators: ~28/27, ~3 | |||
[[POTE tuning|POTE generator]]: ~3/2 = 701.880 | |||
[[EDO|Vals]]: {{Val list| 19, 152, 171, 665, 836, 1007, 2185 }} | |||
==Hemienneadecal== | [[Badness]]: 0.010954 | ||
== Hemienneadecal == | |||
Comma list: 3025/3024, 4375/4374, 234375/234256 | |||
Mapping: [<38 0 28 -74 11|, <0 1 1 3 2|] | |||
POTE generator: ~3/2 = 701.881 | POTE generator: ~3/2 = 701.881 | ||
Vals: {{Val list| 152, 342, 494, 836, 1178, 2014 }} | |||
Badness: 0.009985 | |||
=== 13-limit === | |||
Comma list: 3025/3024, 4096/4095, 4375/4374, 31250/31213 | |||
Mapping: [<38 0 28 -74 11 502|, <0 1 1 3 2 -6|] | |||
POTE generator: ~3/2 = 701.986 | POTE generator: ~3/2 = 701.986 | ||
Vals: {{Val list| 152, 342, 494, 836 }} | |||
Badness: 0. | Badness: 0.030391 | ||
=Deca= | = Deca = | ||
Commas: 4375/4374, 165288374272/164794921875 | Commas: 4375/4374, 165288374272/164794921875 | ||