23ed5/4

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← 22ed5/423ed5/424ed5/4 →
Prime factorization 23 (prime)
Step size 16.7962¢ 
Octave 71\23ed5/4 (1192.53¢)
Twelfth 113\23ed5/4 (1897.98¢)
Consistency limit 3
Distinct consistency limit 2

23 equal divisions of 5/4 (abbreviated 23ed5/4) is a nonoctave tuning system that divides the interval of 5/4 into 23 equal parts of about 16.8 ¢ each. Each step represents a frequency ratio of (5/4)1/23, or the 23rd root of 5/4.

Intervals

Steps Cents Approximate Ratios
0 0 1/1
1 16.796
2 33.592
3 50.389
4 67.185 22/21
5 83.981 20/19, 23/22
6 100.777 19/18
7 117.574 15/14
8 134.37 14/13
9 151.166 13/12, 23/21, 25/23
10 167.962 11/10
11 184.759 10/9, 19/17, 21/19
12 201.555
13 218.351 17/15
14 235.147
15 251.944 15/13, 22/19, 23/20
16 268.74 20/17
17 285.536 13/11
18 302.332 6/5, 25/21
19 319.129
20 335.925 17/14, 23/19
21 352.721 11/9
22 369.517 21/17
23 386.314

Harmonics

Approximation of harmonics in 23ed5/4
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) -7.47 -3.98 +1.86 +1.86 +5.35 +7.22 -5.60 -7.96 -5.60 -2.64 -2.12
Relative (%) -44.5 -23.7 +11.1 +11.1 +31.9 +43.0 -33.4 -47.4 -33.4 -15.7 -12.6
Steps
(reduced)
71
(2)
113
(21)
143
(5)
166
(5)
185
(1)
201
(17)
214
(7)
226
(19)
237
(7)
247
(17)
256
(3)
Approximation of harmonics in 23ed5/4
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) -6.32 -0.25 -2.12 +3.73 -0.45 +1.37 -8.25 +3.73 +3.24 +6.69 -3.09
Relative (%) -37.6 -1.5 -12.6 +22.2 -2.7 +8.2 -49.1 +22.2 +19.3 +39.8 -18.4
Steps
(reduced)
264
(11)
272
(19)
279
(3)
286
(10)
292
(16)
298
(22)
303
(4)
309
(10)
314
(15)
319
(20)
323
(1)