2000edo: Difference between revisions

From Xenharmonic Wiki
Jump to navigation Jump to search
BudjarnLambeth (talk | contribs)
mNo edit summary
BudjarnLambeth (talk | contribs)
mNo edit summary
Line 1: Line 1:
{{novelty}}{{Infobox ET}}
{{Infobox ET}}
{{EDO intro|2000}}
{{EDO intro|2000}}



Revision as of 06:59, 9 July 2023

← 1999edo 2000edo 2001edo →
Prime factorization 24 × 53
Step size 0.6 ¢ 
Fifth 1170\2000 (702 ¢) (→ 117\200)
Semitones (A1:m2) 190:150 (114 ¢ : 90 ¢)
Consistency limit 29
Distinct consistency limit 29

Template:EDO intro

Theory

2000edo is distinctly consistent through the 29-odd-limit and a strong no-31's 41-limit system; the only smaller edo with a smaller 29-limit relative error being 1578edo. The only ones superior to it in the 23-limit are 1578 and 1889edo, and in the 19-limit, nothing smaller defeats it.

2000 = 24 × 53 , and its divisors are 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000. From these, 1000edo is notable because it carries the interval size measure millioctave. It is argued that cutting millioctaves in half makes for a better interval measuring system, in light of 2000edo's high consistency limit, which introduces just interval approximations not present in 1000edo. In addition, 2000edo inherits its fifth from 200edo, where it is semiconvergent.

Prime harmonics

Approximation of prime harmonics in 2000edo
Harmonic 2 3 5 7 11 13 17 19 23 29 31 37 41
Error Absolute (¢) +0.000 +0.045 +0.086 +0.174 +0.082 +0.072 +0.045 +0.087 -0.074 +0.023 -0.236 +0.056 -0.062
Relative (%) +0.0 +7.5 +14.4 +29.0 +13.7 +12.1 +7.4 +14.5 -12.4 +3.8 -39.3 +9.3 -10.4
Steps
(reduced)
2000
(0)
3170
(1170)
4644
(644)
5615
(1615)
6919
(919)
7401
(1401)
8175
(175)
8496
(496)
9047
(1047)
9716
(1716)
9908
(1908)
10419
(419)
10715
(715)

Regular temperament properties

2000edo has the smallest relative error than any previous equal temperaments in the 19-limit. It is only bettered by 2460edo.

Rank-2 temperaments

Table of rank-2 temperaments by generator
Periods
per 8ve
Generator
(Reduced)
Cents
(Reduced)
Associated
Ratio
Temperaments
20 287\2000
(87\2000)
172.2
(52.2)
169/153
(?)
Calcium
80 619\2000
(19\2000)
371.4
(11.4)
2275/1836
(?)
Mercury