57ed6

Revision as of 02:02, 30 November 2024 by BudjarnLambeth (talk | contribs) (Intervals harmonics)

Division of the sixth harmonic into 57 equal parts (57ED6) is very nearly identical to 22 EDO, but with the 6/1 rather than the 2/1 being just. The octave is about 2.754 ¢ compressed and the step size is about 54.4203 ¢. The local zeta peak around 22 is located at 22.025147, which has a step size of 54.483 ¢ and an octave of 1198.63 ¢ (which is compressed by 1.37 ¢), making 57ed6 very close to optimal for 22edo.

← 56ed6 57ed6 58ed6 →
Prime factorization 3 × 19
Step size 54.4203 ¢ 
Octave 22\57ed6 (1197.25 ¢)
Twelfth 35\57ed6 (1904.71 ¢)
Consistency limit 12
Distinct consistency limit 8

Intervals

Steps Cents Approximate ratios
0 0 1/1
1 54.4 30/29, 31/30, 32/31, 33/32, 34/33
2 108.8 16/15, 17/16, 33/31
3 163.3 11/10, 34/31
4 217.7 17/15, 25/22
5 272.1 34/29
6 326.5 23/19, 29/24
7 380.9
8 435.4 9/7
9 489.8
10 544.2 26/19
11 598.6 17/12, 24/17
12 653 16/11, 19/13
13 707.5
14 761.9 14/9, 31/20
15 816.3 8/5
16 870.7 33/20
17 925.1 29/17
18 979.6 30/17
19 1034 20/11, 29/16
20 1088.4 15/8
21 1142.8 29/15, 31/16
22 1197.2 2/1
23 1251.7 33/16
24 1306.1 17/8
25 1360.5 11/5
26 1414.9 34/15
27 1469.3 7/3
28 1523.8 29/12
29 1578.2
30 1632.6 18/7
31 1687
32 1741.4 30/11
33 1795.9 31/11
34 1850.3 32/11
35 1904.7 3/1
36 1959.1 31/10
37 2013.5 16/5
38 2068 33/10
39 2122.4 17/5
40 2176.8
41 2231.2 29/8
42 2285.7 15/4
43 2340.1 27/7
44 2394.5
45 2448.9 33/8
46 2503.3 17/4
47 2557.8
48 2612.2
49 2666.6 14/3
50 2721
51 2775.4
52 2829.9
53 2884.3
54 2938.7
55 2993.1
56 3047.5 29/5
57 3102 6/1

Harmonics

Approximation of harmonics in 44ed6
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) -1.5 +1.5 -3.0 +33.6 +0.0 +15.1 -4.6 +3.0 +32.1 +8.1 -1.5
Relative (%) -2.2 +2.2 -4.3 +47.7 +0.0 +21.5 -6.5 +4.3 +45.6 +11.5 -2.2
Steps
(reduced)
17
(17)
27
(27)
34
(34)
40
(40)
44
(0)
48
(4)
51
(7)
54
(10)
57
(13)
59
(15)
61
(17)
Approximation of harmonics in 44ed6
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) +0.9 +13.6 +35.2 -6.1 +30.0 +1.5 -21.6 +30.6 +16.6 +6.6 +0.1
Relative (%) +1.3 +19.3 +49.9 -8.6 +42.5 +2.2 -30.6 +43.4 +23.6 +9.4 +0.2
Steps
(reduced)
63
(19)
65
(21)
67
(23)
68
(24)
70
(26)
71
(27)
72
(28)
74
(30)
75
(31)
76
(32)
77
(33)