23ed6

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← 22ed6 23ed6 24ed6 →
Prime factorization 23 (prime)
Step size 134.868¢ 
Octave 9\23ed6 (1213.81¢)
Twelfth 14\23ed6 (1888.15¢)
Consistency limit 8
Distinct consistency limit 5

23 equal divisions of the 6th harmonic (abbreviated 23ed6) is a nonoctave tuning system that divides the interval of 6/1 into 23 equal parts of about 135⁠ ⁠¢ each. Each step represents a frequency ratio of 61/23, or the 23rd root of 6.

23ed6 is similar to 9edo, but has the 6/1 tuned just instead of the octave, which stretches the octave by 13.8 ¢. It also approximates Pelog tunings in Indonesian gamelan music very well, since Pelog is well-approximated by 9edo.

Intervals

Steps Cents Approximate ratios
0 0 1/1
1 134.9 13/12, 14/13
2 269.7 7/6
3 404.6 14/11, 19/15, 24/19
4 539.5 11/8, 15/11, 19/14
5 674.3 22/15
6 809.2 8/5, 19/12
7 944.1 12/7, 19/11
8 1078.9 13/7, 15/8
9 1213.8
10 1348.7 13/6, 24/11
11 1483.5
12 1618.4 23/9
13 1753.3 11/4
14 1888.1
15 2023 16/5
16 2157.9 7/2
17 2292.7 15/4
18 2427.6
19 2562.5 22/5
20 2697.4 19/4
21 2832.2
22 2967.1
23 3102 6/1

Harmonics

Approximation of harmonics in 23ed6
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +13.8 -13.8 +27.6 +45.9 +0.0 +2.9 +41.4 -27.6 +59.7 +29.6 +13.8
Relative (%) +10.2 -10.2 +20.5 +34.0 +0.0 +2.1 +30.7 -20.5 +44.3 +21.9 +10.2
Steps
(reduced)
9
(9)
14
(14)
18
(18)
21
(21)
23
(0)
25
(2)
27
(4)
28
(5)
30
(7)
31
(8)
32
(9)
Approximation of harmonics in 23ed6
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) +10.1 +16.7 +32.1 +55.2 -49.7 -13.8 +27.5 -61.3 -10.9 +43.4 -33.6
Relative (%) +7.5 +12.4 +23.8 +41.0 -36.9 -10.2 +20.4 -45.5 -8.1 +32.2 -24.9
Steps
(reduced)
33
(10)
34
(11)
35
(12)
36
(13)
36
(13)
37
(14)
38
(15)
38
(15)
39
(16)
40
(17)
40
(17)