105edt

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← 104edt105edt106edt →
Prime factorization 3 × 5 × 7
Step size 18.1139¢ 
Octave 66\105edt (1195.51¢) (→22\35edt)
Consistency limit 4
Distinct consistency limit 4

105 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 105edt or 105ed3), is a nonoctave tuning system that divides the interval of 3/1 into 105 equal parts of about 18.1 ¢ each. Each step represents a frequency ratio of 31/105, or the 105th root of 3.

Intervals

Steps Cents Approximate Ratios
0 0 1/1
1 18.114
2 36.228 46/45
3 54.342
4 72.455
5 90.569 20/19, 39/37
6 108.683 33/31
7 126.797 14/13, 43/40
8 144.911 25/23, 37/34
9 163.025 11/10, 45/41
10 181.139 10/9
11 199.252 37/33, 46/41
12 217.366 17/15, 42/37
13 235.48 39/34
14 253.594 22/19
15 271.708 41/35
16 289.822 13/11
17 307.936 37/31, 43/36
18 326.049 35/29, 41/34
19 344.163
20 362.277 37/30
21 380.391
22 398.505 34/27, 39/31
23 416.619 14/11
24 434.733 9/7
25 452.846 13/10
26 470.96 46/35
27 489.074
28 507.188
29 525.302 23/17, 42/31
30 543.416 26/19, 37/27
31 561.53 18/13
32 579.643
33 597.757 41/29
34 615.871 10/7
35 633.985
36 652.099
37 670.213 28/19
38 688.327
39 706.44
40 724.554 35/23, 41/27
41 742.668 43/28
42 760.782 31/20, 45/29
43 778.896
44 797.01 19/12, 46/29
45 815.124
46 833.237 34/21
47 851.351 18/11
48 869.465 43/26
49 887.579
50 905.693
51 923.807 29/17, 46/27
52 941.921 31/18
53 960.034
54 978.148
55 996.262
56 1014.376
57 1032.49
58 1050.604 11/6
59 1068.718
60 1086.831
61 1104.945 36/19
62 1123.059
63 1141.173 29/15
64 1159.287 41/21, 43/22
65 1177.401
66 1195.515
67 1213.628
68 1231.742
69 1249.856 35/17
70 1267.97
71 1286.084 21/10
72 1304.198
73 1322.312
74 1340.425 13/6
75 1358.539 46/21
76 1376.653 31/14
77 1394.767
78 1412.881 43/19
79 1430.995
80 1449.109 30/13
81 1467.222 7/3
82 1485.336 33/14
83 1503.45 31/13
84 1521.564
85 1539.678
86 1557.792
87 1575.906
88 1594.019
89 1612.133 33/13
90 1630.247
91 1648.361
92 1666.475 34/13
93 1684.589 37/14, 45/17
94 1702.703
95 1720.816 27/10
96 1738.93 30/11, 41/15
97 1757.044
98 1775.158 39/14
99 1793.272 31/11
100 1811.386 37/13
101 1829.5
102 1847.613
103 1865.727
104 1883.841
105 1901.955 3/1

Harmonics

Approximation of harmonics in 105edt
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) -4.49 +0.00 -8.97 +3.22 -4.49 +0.35 +4.66 +0.00 -1.27 -3.24 -8.97
Relative (%) -24.8 +0.0 -49.5 +17.8 -24.8 +1.9 +25.7 +0.0 -7.0 -17.9 -49.5
Steps
(reduced)
66
(66)
105
(0)
132
(27)
154
(49)
171
(66)
186
(81)
199
(94)
210
(0)
220
(10)
229
(19)
237
(27)
Approximation of harmonics in 105edt
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) -2.63 -4.13 +3.22 +0.17 +3.90 -4.49 -7.52 -5.75 +0.35 -7.73 +5.88
Relative (%) -14.5 -22.8 +17.8 +1.0 +21.5 -24.8 -41.5 -31.7 +1.9 -42.7 +32.5
Steps
(reduced)
245
(35)
252
(42)
259
(49)
265
(55)
271
(61)
276
(66)
281
(71)
286
(76)
291
(81)
295
(85)
300
(90)