82edt

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← 81edt82edt83edt →
Prime factorization 2 × 41
Step size 23.1946¢ 
Octave 52\82edt (1206.12¢) (→26\41edt)
Consistency limit 2
Distinct consistency limit 2

82 equal divisions of the tritave, perfect twelfth, or 3rd harmonic (abbreviated 82edt or 82ed3), is a nonoctave tuning system that divides the interval of 3/1 into 82 equal parts of about 23.2 ¢ each. Each step represents a frequency ratio of 31/82, or the 82nd root of 3.

Intervals

Steps Cents Approximate Ratios
0 0 1/1
1 23.195
2 46.389 37/36, 38/37
3 69.584 26/25
4 92.778 19/18
5 115.973 31/29
6 139.167
7 162.362 11/10, 34/31
8 185.557 39/35
9 208.751 35/31
10 231.946
11 255.14 22/19, 29/25
12 278.335 27/23, 34/29
13 301.529 25/21, 31/26
14 324.724 35/29
15 347.919 11/9
16 371.113 26/21, 31/25
17 394.308
18 417.502 14/11
19 440.697
20 463.891 17/13
21 487.086
22 510.281 39/29
23 533.475 34/25
24 556.67 29/21
25 579.864 7/5
26 603.059
27 626.253 33/23
28 649.448
29 672.643 28/19, 31/21
30 695.837
31 719.032
32 742.226 23/15
33 765.421 14/9
34 788.615 30/19
35 811.81
36 835.005 34/21
37 858.199 23/14
38 881.394 5/3
39 904.588
40 927.783
41 950.978 26/15
42 974.172
43 997.367
44 1020.561 9/5
45 1043.756
46 1066.95 37/20
47 1090.145
48 1113.34 19/10
49 1136.534 27/14
50 1159.729
51 1182.923
52 1206.118
53 1229.312
54 1252.507 35/17
55 1275.702 23/11
56 1298.896
57 1322.091 15/7
58 1345.285
59 1368.48
60 1391.674 29/13
61 1414.869 34/15
62 1438.064 39/17
63 1461.258
64 1484.453 33/14
65 1507.647
66 1530.842
67 1554.036 27/11
68 1577.231
69 1600.426
70 1623.62 23/9
71 1646.815
72 1670.009
73 1693.204
74 1716.398 35/13
75 1739.593 30/11
76 1762.788
77 1785.982
78 1809.177
79 1832.371
80 1855.566
81 1878.76
82 1901.955 3/1

Harmonics

Approximation of harmonics in 82edt
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +6.1 +0.0 -11.0 -3.0 +6.1 -5.6 -4.8 +0.0 +3.2 +0.5 -11.0
Relative (%) +26.4 +0.0 -47.2 -12.8 +26.4 -24.2 -20.9 +0.0 +13.6 +2.2 -47.2
Steps
(reduced)
52
(52)
82
(0)
103
(21)
120
(38)
134
(52)
145
(63)
155
(73)
164
(0)
172
(8)
179
(15)
185
(21)
Approximation of harmonics in 82edt
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) -10.4 +0.5 -3.0 +1.3 -10.9 +6.1 +5.3 +9.3 -5.6 +6.6 -0.7
Relative (%) -44.7 +2.2 -12.8 +5.5 -47.0 +26.4 +22.8 +40.0 -24.2 +28.6 -3.2
Steps
(reduced)
191
(27)
197
(33)
202
(38)
207
(43)
211
(47)
216
(52)
220
(56)
224
(60)
227
(63)
231
(67)
234
(70)