82edt

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← 81edt 82edt 83edt →
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 Hekts Approximate ratios
0 0 0 1/1
1 23.2 15.9
2 46.4 31.7 37/36, 38/37
3 69.6 47.6 26/25
4 92.8 63.4 19/18
5 116 79.3 31/29
6 139.2 95.1
7 162.4 111 11/10, 34/31
8 185.6 126.8 39/35
9 208.8 142.7 35/31
10 231.9 158.5
11 255.1 174.4 22/19, 29/25
12 278.3 190.2 27/23, 34/29
13 301.5 206.1 25/21, 31/26
14 324.7 222 35/29
15 347.9 237.8 11/9
16 371.1 253.7 26/21, 31/25
17 394.3 269.5
18 417.5 285.4 14/11
19 440.7 301.2
20 463.9 317.1 17/13
21 487.1 332.9
22 510.3 348.8 39/29
23 533.5 364.6 34/25
24 556.7 380.5 29/21
25 579.9 396.3 7/5
26 603.1 412.2
27 626.3 428 33/23
28 649.4 443.9
29 672.6 459.8 28/19, 31/21
30 695.8 475.6
31 719 491.5
32 742.2 507.3 23/15
33 765.4 523.2 14/9
34 788.6 539 30/19
35 811.8 554.9
36 835 570.7 34/21
37 858.2 586.6 23/14
38 881.4 602.4 5/3
39 904.6 618.3
40 927.8 634.1
41 951 650 26/15
42 974.2 665.9
43 997.4 681.7
44 1020.6 697.6 9/5
45 1043.8 713.4
46 1067 729.3 37/20
47 1090.1 745.1
48 1113.3 761 19/10
49 1136.5 776.8 27/14
50 1159.7 792.7
51 1182.9 808.5
52 1206.1 824.4
53 1229.3 840.2
54 1252.5 856.1 35/17
55 1275.7 872 23/11
56 1298.9 887.8
57 1322.1 903.7 15/7
58 1345.3 919.5
59 1368.5 935.4
60 1391.7 951.2 29/13
61 1414.9 967.1 34/15
62 1438.1 982.9 39/17
63 1461.3 998.8
64 1484.5 1014.6 33/14
65 1507.6 1030.5
66 1530.8 1046.3
67 1554 1062.2 27/11
68 1577.2 1078
69 1600.4 1093.9
70 1623.6 1109.8 23/9
71 1646.8 1125.6
72 1670 1141.5
73 1693.2 1157.3
74 1716.4 1173.2 35/13
75 1739.6 1189 30/11
76 1762.8 1204.9
77 1786 1220.7
78 1809.2 1236.6
79 1832.4 1252.4
80 1855.6 1268.3
81 1878.8 1284.1
82 1902 1300 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)