36ed5

From Xenharmonic Wiki
Jump to navigation Jump to search
← 35ed5 36ed5 37ed5 →
Prime factorization 22 × 32
Step size 77.3976¢ 
Octave 16\36ed5 (1238.36¢) (→4\9ed5)
Twelfth 25\36ed5 (1934.94¢)
Consistency limit 3
Distinct consistency limit 3
Special properties

The 36 equal divisions of the fifth harmonic (5/1) is a tuning that divides the pentave into 36 equal steps. It combines Carlos Alpha scale with quarter-comma meantone. The step size is 77.3976 cents, thus making the tuning correspond to 15.5044 EDO. As a consequence of this, 36ed5 completely misses 2/1.

Theory

Selected intervals in 36ed5
Step Just approximation Size (cents)
1 23/22 77.3976
3 8/7 232.1928
5 5/4 386.9880
6 21/16 464.3856
9 3/2 696.5784
19 7/3 1470.554
28 7/2 2167.1329
31 4/1 2399.326
36 exact 5/1 2786.314

All intervals

Steps Cents Approximate ratios
0 0 1/1
1 77.4 21/20, 22/21
2 154.8
3 232.2
4 309.6
5 387
6 464.4 17/13
7 541.8 15/11, 26/19
8 619.2 10/7
9 696.6 3/2
10 774
11 851.4
12 928.8 29/17
13 1006.2
14 1083.6
15 1161
16 1238.4
17 1315.8 15/7
18 1393.2 29/13
19 1470.6 7/3
20 1548 22/9
21 1625.3
22 1702.7
23 1780.1
24 1857.5
25 1934.9
26 2012.3
27 2089.7 10/3
28 2167.1 7/2
29 2244.5 11/3
30 2321.9
31 2399.3
32 2476.7
33 2554.1
34 2631.5
35 2708.9
36 2786.3 5/1

Harmonics

Approximation of harmonics in 36ed5
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +38.4 +33.0 -0.7 +0.0 -6.1 +36.7 +37.7 -11.4 +38.4 +28.2 +32.3
Relative (%) +49.6 +42.6 -0.9 +0.0 -7.8 +47.4 +48.7 -14.8 +49.6 +36.4 +41.7
Steps
(reduced)
16
(16)
25
(25)
31
(31)
36
(0)
40
(4)
44
(8)
47
(11)
49
(13)
52
(16)
54
(18)
56
(20)
Approximation of harmonics in 36ed5
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) -28.9 -2.4 +33.0 -1.3 -28.9 +26.9 +10.7 -0.7 -7.7 -10.9 -10.4
Relative (%) -37.3 -3.1 +42.6 -1.7 -37.3 +34.8 +13.9 -0.9 -10.0 -14.1 -13.5
Steps
(reduced)
57
(21)
59
(23)
61
(25)
62
(26)
63
(27)
65
(29)
66
(30)
67
(31)
68
(32)
69
(33)
70
(34)