49ed4

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← 47ed449ed451ed4 →
Prime factorization 72
Step size 48.9796¢ 
Octave 25\49ed4 (1224.49¢)
Twelfth 39\49ed4 (1910.2¢)
Consistency limit 1
Distinct consistency limit 1

49 equal divisions of the 4th harmonic (abbreviated 49ed4) is a nonoctave tuning system that divides the interval of 4/1 into 49 equal parts of about 49 ¢ each. Each step represents a frequency ratio of 41/49, or the 49th root of 4.

Intervals

Steps Cents Approximate Ratios
0 0 1/1
1 48.98
2 97.959
3 146.939 25/23
4 195.918 19/17
5 244.898 15/13
6 293.878 13/11
7 342.857 11/9
8 391.837
9 440.816
10 489.796
11 538.776 15/11
12 587.755 7/5
13 636.735 13/9
14 685.714
15 734.694 23/15, 29/19
16 783.673 11/7
17 832.653 21/13
18 881.633 5/3
19 930.612
20 979.592
21 1028.571
22 1077.551
23 1126.531 25/13
24 1175.51
25 1224.49
26 1273.469 23/11
27 1322.449 15/7
28 1371.429
29 1420.408 25/11
30 1469.388 7/3
31 1518.367
32 1567.347
33 1616.327
34 1665.306
35 1714.286 27/10
36 1763.265 25/9
37 1812.245
38 1861.224
39 1910.204
40 1959.184
41 2008.163
42 2057.143 23/7
43 2106.122
44 2155.102
45 2204.082 25/7
46 2253.061 11/3
47 2302.041
48 2351.02
49 2400

Harmonics

Approximation of harmonics in 49ed4
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +24.5 +8.2 +0.0 +5.5 -16.2 +10.8 +24.5 +16.5 -19.0 +11.9 +8.2
Relative (%) +50.0 +16.8 +0.0 +11.3 -33.2 +22.0 +50.0 +33.7 -38.7 +24.4 +16.8
Steps
(reduced)
25
(25)
39
(39)
49
(0)
57
(8)
63
(14)
69
(20)
74
(25)
78
(29)
81
(32)
85
(36)
88
(39)
Approximation of harmonics in 49ed4
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) +16.6 -13.7 +13.8 +0.0 -7.0 -8.0 -3.6 +5.5 +19.0 -12.5 +8.5
Relative (%) +33.9 -28.0 +28.1 +0.0 -14.3 -16.3 -7.4 +11.3 +38.8 -25.6 +17.3
Steps
(reduced)
91
(42)
93
(44)
96
(47)
98
(0)
100
(2)
102
(4)
104
(6)
106
(8)
108
(10)
109
(11)
111
(13)