139ed4

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← 137ed4 139ed4 141ed4 →
Prime factorization 139 (prime)
Step size 17.2662¢ 
Octave 70\139ed4 (1208.63¢)
Twelfth 110\139ed4 (1899.28¢)
Consistency limit 1
Distinct consistency limit 1

139 equal divisions of the 4th harmonic (abbreviated 139ed4) is a nonoctave tuning system that divides the interval of 4/1 into 139 equal parts of about 17.3 ¢ each. Each step represents a frequency ratio of 41/139, or the 139th root of 4.

Intervals

Steps Cents Approximate ratios
0 0 1/1
1 17.3
2 34.5 50/49, 51/50
3 51.8
4 69.1 51/49
5 86.3 41/39
6 103.6
7 120.9
8 138.1
9 155.4 47/43
10 172.7 21/19
11 189.9 29/26
12 207.2
13 224.5 49/43
14 241.7 54/47
15 259 43/37
16 276.3 27/23, 34/29
17 293.5
18 310.8
19 328.1
20 345.3
21 362.6 37/30
22 379.9
23 397.1 39/31
24 414.4 47/37
25 431.7 50/39
26 448.9 35/27
27 466.2
28 483.5 41/31
29 500.7
30 518 31/23
31 535.3
32 552.5
33 569.8
34 587.1
35 604.3
36 621.6 43/30
37 638.8
38 656.1 19/13, 54/37
39 673.4 31/21
40 690.6
41 707.9
42 725.2 35/23
43 742.4
44 759.7
45 777 47/30
46 794.2 49/31
47 811.5
48 828.8 21/13, 50/31
49 846 31/19
50 863.3 51/31
51 880.6
52 897.8
53 915.1 39/23
54 932.4
55 949.6
56 966.9
57 984.2 30/17
58 1001.4 41/23
59 1018.7 9/5
60 1036
61 1053.2
62 1070.5 13/7
63 1087.8
64 1105
65 1122.3
66 1139.6
67 1156.8 41/21
68 1174.1
69 1191.4
70 1208.6
71 1225.9
72 1243.2
73 1260.4 29/14
74 1277.7 23/11
75 1295 19/9
76 1312.2
77 1329.5
78 1346.8 37/17
79 1364 11/5
80 1381.3
81 1398.6
82 1415.8
83 1433.1
84 1450.4
85 1467.6 7/3
86 1484.9
87 1502.2 50/21
88 1519.4
89 1536.7 17/7
90 1554 27/11
91 1571.2
92 1588.5
93 1605.8 43/17
94 1623 23/9
95 1640.3 49/19
96 1657.6
97 1674.8 50/19
98 1692.1
99 1709.4 51/19
100 1726.6
101 1743.9
102 1761.2 47/17
103 1778.4
104 1795.7
105 1812.9
106 1830.2
107 1847.5
108 1864.7
109 1882
110 1899.3
111 1916.5
112 1933.8
113 1951.1
114 1968.3
115 1985.6
116 2002.9 35/11
117 2020.1
118 2037.4
119 2054.7
120 2071.9 43/13
121 2089.2
122 2106.5
123 2123.7
124 2141 31/9
125 2158.3
126 2175.5
127 2192.8 39/11
128 2210.1
129 2227.3
130 2244.6
131 2261.9
132 2279.1 41/11
133 2296.4 49/13
134 2313.7
135 2330.9 50/13
136 2348.2
137 2365.5 51/13
138 2382.7
139 2400

Harmonics

Approximation of harmonics in 139ed4
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +8.63 -2.67 +0.00 -6.46 +5.96 -1.92 +8.63 -5.35 +2.18 -7.43 -2.67
Relative (%) +50.0 -15.5 +0.0 -37.4 +34.5 -11.1 +50.0 -31.0 +12.6 -43.0 -15.5
Steps
(reduced)
70
(70)
110
(110)
139
(0)
161
(22)
180
(41)
195
(56)
209
(70)
220
(81)
231
(92)
240
(101)
249
(110)
Approximation of harmonics in 139ed4
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) -3.12 +6.71 +8.13 +0.00 -1.36 +3.28 -3.99 -6.46 -4.59 +1.20 -6.69
Relative (%) -18.1 +38.9 +47.1 +0.0 -7.9 +19.0 -23.1 -37.4 -26.6 +7.0 -38.8
Steps
(reduced)
257
(118)
265
(126)
272
(133)
278
(0)
284
(6)
290
(12)
295
(17)
300
(22)
305
(27)
310
(32)
314
(36)