84ed7/3

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← 83ed7/384ed7/385ed7/3 →
Prime factorization 22 × 3 × 7
Step size 17.4627¢ 
Octave 69\84ed7/3 (1204.93¢) (→23\28ed7/3)
Twelfth 109\84ed7/3 (1903.44¢)
Consistency limit 3
Distinct consistency limit 3

84 equal divisions of 7/3 (abbreviated 84ed7/3) is a nonoctave tuning system that divides the interval of 7/3 into 84 equal parts of about 17.5 ¢ each. Each step represents a frequency ratio of (7/3)1/84, or the 84th root of 7/3.

Intervals

Steps Cents Approximate Ratios
0 0 1/1
1 17.463
2 34.925
3 52.388 34/33, 35/34
4 69.851 25/24
5 87.314 41/39
6 104.776 35/33
7 122.239 15/14, 29/27
8 139.702 38/35
9 157.165 23/21
10 174.627 21/19
11 192.09 19/17, 29/26
12 209.553 26/23
13 227.016
14 244.478 38/33
15 261.941
16 279.404 27/23
17 296.867
18 314.329 6/5
19 331.792 23/19
20 349.255 11/9
21 366.718 21/17, 26/21
22 384.18 5/4
23 401.643 29/23, 34/27
24 419.106 14/11, 37/29
25 436.569 9/7
26 454.031
27 471.494
28 488.957
29 506.42
30 523.882 23/17
31 541.345 26/19
32 558.808 29/21
33 576.271
34 593.733 38/27
35 611.196 27/19, 37/26
36 628.659 36/25
37 646.122
38 663.584 22/15
39 681.047
40 698.51
41 715.973
42 733.435 26/17, 29/19
43 750.898 17/11
44 768.361
45 785.824 41/26
46 803.286 27/17, 35/22
47 820.749 37/23
48 838.212
49 855.675
50 873.137
51 890.6
52 908.063
53 925.526 29/17
54 942.988
55 960.451
56 977.914 37/21
57 995.377
58 1012.839
59 1030.302
60 1047.765 11/6
61 1065.228
62 1082.69 28/15
63 1100.153 17/9
64 1117.616 21/11
65 1135.079 27/14
66 1152.541 35/18, 37/19
67 1170.004
68 1187.467
69 1204.93
70 1222.392
71 1239.855
72 1257.318
73 1274.781 23/11
74 1292.243 19/9
75 1309.706
76 1327.169
77 1344.632 37/17
78 1362.094 11/5
79 1379.557
80 1397.02
81 1414.483 34/15
82 1431.945
83 1449.408
84 1466.871 7/3

Harmonics

Approximation of harmonics in 84ed7/3
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +4.93 +1.48 -7.60 +7.73 +6.41 +1.48 -2.67 +2.97 -4.81 +4.82 -6.12
Relative (%) +28.2 +8.5 -43.5 +44.2 +36.7 +8.5 -15.3 +17.0 -27.5 +27.6 -35.0
Steps
(reduced)
69
(69)
109
(25)
137
(53)
160
(76)
178
(10)
193
(25)
206
(38)
218
(50)
228
(60)
238
(70)
246
(78)
Approximation of harmonics in 84ed7/3
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) -4.99 +6.41 -8.25 +2.26 +2.08 +7.90 +1.61 +0.12 +2.97 -7.72 +2.64
Relative (%) -28.6 +36.7 -47.3 +12.9 +11.9 +45.2 +9.2 +0.7 +17.0 -44.2 +15.1
Steps
(reduced)
254
(2)
262
(10)
268
(16)
275
(23)
281
(29)
287
(35)
292
(40)
297
(45)
302
(50)
306
(54)
311
(59)