23ed6
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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
← 22ed6 | 23ed6 | 24ed6 → |
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
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) |
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) |