1619edo: Difference between revisions

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|2.3.5
|2.3.5
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|{{monzo|-69, 45, -1}}, {{monzo|-82, -1, 36}}
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|[{{val|1619 2566 3759}}]
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|0.030
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|0.026
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|3.5
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|2.3.5.7
|2.3.5.7
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|4375/4374, {{monzo|-6 3 9 -7}}, {{monzo|-67 14 6 11}}
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|[{{val|1619 2566 3759 4545}}]
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|0.030
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|0.023
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|3.1
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|2.3.5.7.11
|2.3.5.7.11
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|117649/117612, 151263/151250, 759375/758912, [[117440512/117406179]]
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|[{{val|1619 2566 3759 4545 5601}}]
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|0.016
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|0.034
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|4.0
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|2.3.5.7.11.13
|2.3.5.7.11.13
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|4225/4224, 43940/43923, 151263/151250, 91125/91091, 123201/123200
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|[{{val|1619 2566 3759 4545 5601 5991}}]
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|0.013
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|0.032
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|4.2
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|2.3.5.7.11.13.17
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|2.3.5.7.11.13.17
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[[Category:Ragismic family]]
[[Category:Ragismic family]]

Revision as of 08:18, 12 March 2022

1619edo divides the octave into parts of 741 millicents each. It is the 256th Prime EDO.

Theory

Approximation of prime harmonics in 1619edo
Harmonic 2 3 5 7 11 13 17 19 23 29
Error Absolute (¢) +0.000 -0.040 -0.149 -0.080 +0.134 -0.009 +0.295 -0.293 +0.262 -0.053
Relative (%) +0.0 -5.4 -20.2 -10.8 +18.0 -1.2 +39.8 -39.5 +35.3 -7.1
Steps
(reduced)
1619
(0)
2566
(947)
3759
(521)
4545
(1307)
5601
(744)
5991
(1134)
6618
(142)
6877
(401)
7324
(848)
7865
(1389)

1619edo is excellent in the 13-limit. It supports an extension of the ragismic temperament with 2 extra dimensions in several ways. First, it supports the 441 & 270 & 1619 rank 3 temperament tempering out 4225/4224, 4375/4374, 123201/123200, 655473/655360, 1664000/1663893, and 6470695/6469632. Second, it supports 72 & 494 & 270 & 1619 temperament tempering out 6656/6655, 2912000/2910897, and 29115625/29113344.

In general, 1619edo supports vidar, with the comma set 4225/4224, 4375/4374, and 6656/6655.

Regular temperament properties

Subgroup Comma list Mapping Optimal

8ve stretch (¢)

Tuning error
Absolute (¢) Relative (%)
2.3 [-2566 1619 [1619 2566]] 0.013 0.013 1.7
2.3.5 [-69, 45, -1, [-82, -1, 36 [1619 2566 3759]] 0.030 0.026 3.5
2.3.5.7 4375/4374, [-6 3 9 -7, [-67 14 6 11 [1619 2566 3759 4545]] 0.030 0.023 3.1
2.3.5.7.11 117649/117612, 151263/151250, 759375/758912, 117440512/117406179 [1619 2566 3759 4545 5601]] 0.016 0.034 4.0
2.3.5.7.11.13 4225/4224, 43940/43923, 151263/151250, 91125/91091, 123201/123200 [1619 2566 3759 4545 5601 5991]] 0.013 0.032 4.2