115edo

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← 114edo 115edo 116edo →
Prime factorization 5 × 23
Step size 10.4348¢ 
Fifth 67\115 (699.13¢)
Semitones (A1:m2) 9:10 (93.91¢ : 104.3¢)
Consistency limit 7
Distinct consistency limit 7

115 equal divisions of the octave (abbreviated 115edo or 115ed2), also called 115-tone equal temperament (115tet) or 115 equal temperament (115et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 115 equal parts of about 10.4 ¢ each. Each step represents a frequency ratio of 21/115, or the 115th root of 2.

Theory

The equal temperament tempers out 1594323/1562500 (unicorn comma) and 2109375/2097152 (semicomma) in the 5-limit, as well as 43046721/41943040 (python comma) and [19 10 -15 (trisedodge comma); 225/224, 1728/1715, and 9920232/9765625 in the 7-limit. Using the patent val, it supports the newspeak temperament, tempering out 441/440, 1375/1372, and 1944/1925 in the 11-limit. The wizardharry comma, 4000/3993 is also tempered out.

Odd harmonics

Approximation of odd harmonics in 115edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) -2.82 -0.23 +1.61 +4.79 +1.73 +4.69 -3.05 -0.61 +5.10 -1.22 -2.19
Relative (%) -27.1 -2.2 +15.4 +45.9 +16.5 +44.9 -29.2 -5.8 +48.8 -11.7 -21.0
Steps
(reduced)
182
(67)
267
(37)
323
(93)
365
(20)
398
(53)
426
(81)
449
(104)
470
(10)
489
(29)
505
(45)
520
(60)

Intervals

Steps Cents Approximate ratios Ups and downs notation
0 0 1/1 D
1 10.4 ^D, E♭♭
2 20.9 ^^D, ^E♭♭
3 31.3 ^3D, ^^E♭♭
4 41.7 40/39, 41/40, 42/41, 43/42, 44/43 ^4D, ^3E♭♭
5 52.2 33/32, 34/33, 35/34 v4D♯, ^4E♭♭
6 62.6 29/28 v3D♯, v4E♭
7 73 24/23 vvD♯, v3E♭
8 83.5 21/20, 43/41 vD♯, vvE♭
9 93.9 D♯, vE♭
10 104.3 17/16 ^D♯, E♭
11 114.8 31/29, 46/43, 47/44 ^^D♯, ^E♭
12 125.2 43/40 ^3D♯, ^^E♭
13 135.7 40/37 ^4D♯, ^3E♭
14 146.1 25/23, 37/34 v4D𝄪, ^4E♭
15 156.5 23/21, 35/32 v3D𝄪, v4E
16 167 11/10, 43/39 vvD𝄪, v3E
17 177.4 31/28, 41/37 vD𝄪, vvE
18 187.8 29/26, 39/35 D𝄪, vE
19 198.3 28/25, 37/33, 46/41 E
20 208.7 35/31, 44/39 ^E, F♭
21 219.1 42/37 ^^E, ^F♭
22 229.6 8/7 ^3E, ^^F♭
23 240 23/20 ^4E, ^3F♭
24 250.4 37/32 v4E♯, ^4F♭
25 260.9 43/37 v3E♯, v4F
26 271.3 48/41 vvE♯, v3F
27 281.7 20/17 vE♯, vvF
28 292.2 E♯, vF
29 302.6 25/21, 31/26 F
30 313 ^F, G♭♭
31 323.5 35/29, 41/34, 47/39 ^^F, ^G♭♭
32 333.9 40/33 ^3F, ^^G♭♭
33 344.3 39/32 ^4F, ^3G♭♭
34 354.8 43/35 v4F♯, ^4G♭♭
35 365.2 21/17 v3F♯, v4G♭
36 375.7 41/33, 46/37 vvF♯, v3G♭
37 386.1 5/4 vF♯, vvG♭
38 396.5 39/31, 44/35 F♯, vG♭
39 407 43/34 ^F♯, G♭
40 417.4 14/11 ^^F♯, ^G♭
41 427.8 32/25, 41/32 ^3F♯, ^^G♭
42 438.3 ^4F♯, ^3G♭
43 448.7 48/37 v4F𝄪, ^4G♭
44 459.1 30/23, 43/33 v3F𝄪, v4G
45 469.6 21/16, 38/29 vvF𝄪, v3G
46 480 29/22, 33/25 vF𝄪, vvG
47 490.4 F𝄪, vG
48 500.9 G
49 511.3 39/29, 43/32, 47/35 ^G, A♭♭
50 521.7 23/17 ^^G, ^A♭♭
51 532.2 34/25 ^3G, ^^A♭♭
52 542.6 26/19, 41/30 ^4G, ^3A♭♭
53 553 11/8 v4G♯, ^4A♭♭
54 563.5 v3G♯, v4A♭
55 573.9 39/28, 46/33 vvG♯, v3A♭
56 584.3 7/5 vG♯, vvA♭
57 594.8 31/22 G♯, vA♭
58 605.2 44/31 ^G♯, A♭
59 615.7 10/7 ^^G♯, ^A♭
60 626.1 33/23 ^3G♯, ^^A♭
61 636.5 ^4G♯, ^3A♭
62 647 16/11 v4G𝄪, ^4A♭
63 657.4 19/13 v3G𝄪, v4A
64 667.8 25/17 vvG𝄪, v3A
65 678.3 34/23, 37/25 vG𝄪, vvA
66 688.7 G𝄪, vA
67 699.1 A
68 709.6 ^A, B♭♭
69 720 44/29, 47/31 ^^A, ^B♭♭
70 730.4 29/19, 32/21 ^3A, ^^B♭♭
71 740.9 23/15, 43/28 ^4A, ^3B♭♭
72 751.3 37/24 v4A♯, ^4B♭♭
73 761.7 v3A♯, v4B♭
74 772.2 25/16 vvA♯, v3B♭
75 782.6 11/7 vA♯, vvB♭
76 793 A♯, vB♭
77 803.5 35/22 ^A♯, B♭
78 813.9 8/5 ^^A♯, ^B♭
79 824.3 37/23 ^3A♯, ^^B♭
80 834.8 34/21, 47/29 ^4A♯, ^3B♭
81 845.2 v4A𝄪, ^4B♭
82 855.7 41/25 v3A𝄪, v4B
83 866.1 33/20 vvA𝄪, v3B
84 876.5 vA𝄪, vvB
85 887 A𝄪, vB
86 897.4 42/25, 47/28 B
87 907.8 ^B, C♭
88 918.3 17/10 ^^B, ^C♭
89 928.7 41/24 ^3B, ^^C♭
90 939.1 43/25 ^4B, ^3C♭
91 949.6 v4B♯, ^4C♭
92 960 40/23 v3B♯, v4C
93 970.4 7/4 vvB♯, v3C
94 980.9 37/21 vB♯, vvC
95 991.3 39/22 B♯, vC
96 1001.7 25/14, 41/23 C
97 1012.2 ^C, D♭♭
98 1022.6 ^^C, ^D♭♭
99 1033 20/11 ^3C, ^^D♭♭
100 1043.5 42/23 ^4C, ^3D♭♭
101 1053.9 46/25 v4C♯, ^4D♭♭
102 1064.3 37/20 v3C♯, v4D♭
103 1074.8 vvC♯, v3D♭
104 1085.2 43/23 vC♯, vvD♭
105 1095.7 32/17 C♯, vD♭
106 1106.1 ^C♯, D♭
107 1116.5 40/21 ^^C♯, ^D♭
108 1127 23/12 ^3C♯, ^^D♭
109 1137.4 ^4C♯, ^3D♭
110 1147.8 33/17 v4C𝄪, ^4D♭
111 1158.3 39/20, 41/21, 43/22 v3C𝄪, v4D
112 1168.7 vvC𝄪, v3D
113 1179.1 vC𝄪, vvD
114 1189.6 C𝄪, vD
115 1200 2/1 D