1793edo

Revision as of 14:29, 15 October 2023 by FloraC (talk | contribs) (Cleanup; -redundant categories)
← 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

1793edo is a good 2.3.5.11.13.17 subgroup system, 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 provides the optimal patent val for the luminal temperament.

1793edo 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.

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)

Subsets and supersets

1793edo has 11edo and 163edo as its subsets.