1793edo

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Revision as of 20:24, 7 November 2022 by Eliora (talk | contribs) (Created page with "{{Infobox ET}} {{EDO intro|1793}} ==Theory== 1793edo is naively consistent in the 2.3.5.11.13.17 subgroup, in which it has a comma basis 4225/4224, 6656/6655, 42500/42471, 478...")
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← 1792edo 1793edo 1794edo →
Prime factorization 11 × 163
Step size 0.669269 ¢ 
Fifth 1049\1793 (702.064 ¢)
Semitones (A1:m2) 171:134 (114.4 ¢ : 89.68 ¢)
Consistency limit 5
Distinct consistency limit 5

Template:EDO intro

Theory

1793edo is naively consistent in the 2.3.5.11.13.17 subgroup, in which it has a comma basis 4225/4224, 6656/6655, 42500/42471, 4787200/4782969, 703125/702559. Higher prime harmonics it supports to <25% error are 23, 31, 41, 53, 61.

If a mapping for 7 is added, this gives two interpretations. First is the patent val, which has a comma basis 2080/2079, 3025/3024, 4225/4224, 5832/5831, 14875/14872, 108086/108085. The 1793d val has a comma basis 1225/1224, 8624/8619, 12376/12375, 14400/14399, 42500/42471, 29755593/29744000.

It tempers out the jacobin comma, which is quite thematic given that 1793 is another notable year of the French Revolution, just as 1789 is. The comma basis for the 1789 & 1793 temperament in the 2.5.11.13 subgroup is 6656/6655, [-176 23 -2 35.

1793edo has divisors 1, 11, 163.

Odd harmonics

Approximation of odd harmonics in 1793edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) +0.109 -0.145 +0.276 +0.217 +0.160 +0.075 -0.037 +0.120 +0.312 -0.285 +0.170
Relative (%) +16.2 -21.7 +41.3 +32.4 +23.9 +11.2 -5.5 +17.9 +46.6 -42.5 +25.3
Steps
(reduced)
2842
(1049)
4163
(577)
5034
(1448)
5684
(305)
6203
(824)
6635
(1256)
7005
(1626)
7329
(157)
7617
(445)
7875
(703)
8111
(939)