115edo

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← 114edo115edo116edo →
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 10.435 ^D, E♭♭
2 20.87 78/77 ^^D, v8E♭
3 31.304 50/49, 56/55, 64/63 ^3D, v7E♭
4 41.739 40/39 ^4D, v6E♭
5 52.174 33/32 ^5D, v5E♭
6 62.609 80/77 ^6D, v4E♭
7 73.043 25/24 ^7D, v3E♭
8 83.478 21/20, 22/21 ^8D, vvE♭
9 93.913 55/52 D♯, vE♭
10 104.348 35/33, 52/49 ^D♯, E♭
11 114.783 16/15 ^^D♯, v8E
12 125.217 14/13 ^3D♯, v7E
13 135.652 ^4D♯, v6E
14 146.087 ^5D♯, v5E
15 156.522 35/32 ^6D♯, v4E
16 166.957 11/10 ^7D♯, v3E
17 177.391 ^8D♯, vvE
18 187.826 39/35, 49/44 D𝄪, vE
19 198.261 28/25, 55/49 E
20 208.696 44/39 ^E, F♭
21 219.13 25/22 ^^E, v8F
22 229.565 8/7 ^3E, v7F
23 240 ^4E, v6F
24 250.435 ^5E, v5F
25 260.87 64/55, 65/56 ^6E, v4F
26 271.304 75/64 ^7E, v3F
27 281.739 33/28 ^8E, vvF
28 292.174 13/11, 77/65 E♯, vF
29 302.609 25/21 F
30 313.043 6/5 ^F, G♭♭
31 323.478 77/64 ^^F, v8G♭
32 333.913 40/33 ^3F, v7G♭
33 344.348 39/32 ^4F, v6G♭
34 354.783 49/40 ^5F, v5G♭
35 365.217 ^6F, v4G♭
36 375.652 ^7F, v3G♭
37 386.087 5/4 ^8F, vvG♭
38 396.522 44/35, 49/39, 63/50 F♯, vG♭
39 406.957 ^F♯, G♭
40 417.391 14/11, 80/63 ^^F♯, v8G
41 427.826 32/25, 50/39 ^3F♯, v7G
42 438.261 ^4F♯, v6G
43 448.696 ^5F♯, v5G
44 459.13 64/49 ^6F♯, v4G
45 469.565 21/16, 55/42 ^7F♯, v3G
46 480 33/25 ^8F♯, vvG
47 490.435 65/49 F𝄪, vG
48 500.87 4/3 G
49 511.304 35/26 ^G, A♭♭
50 521.739 ^^G, v8A♭
51 532.174 ^3G, v7A♭
52 542.609 ^4G, v6A♭
53 553.043 11/8 ^5G, v5A♭
54 563.478 ^6G, v4A♭
55 573.913 39/28 ^7G, v3A♭
56 584.348 7/5 ^8G, vvA♭
57 594.783 55/39 G♯, vA♭
58 605.217 78/55 ^G♯, A♭
59 615.652 10/7 ^^G♯, v8A
60 626.087 56/39 ^3G♯, v7A
61 636.522 ^4G♯, v6A
62 646.957 16/11 ^5G♯, v5A
63 657.391 ^6G♯, v4A
64 667.826 ^7G♯, v3A
65 678.261 65/44, 77/52 ^8G♯, vvA
66 688.696 52/35 G𝄪, vA
67 699.13 3/2 A
68 709.565 ^A, B♭♭
69 720 50/33 ^^A, v8B♭
70 730.435 32/21 ^3A, v7B♭
71 740.87 49/32 ^4A, v6B♭
72 751.304 77/50 ^5A, v5B♭
73 761.739 ^6A, v4B♭
74 772.174 25/16, 39/25 ^7A, v3B♭
75 782.609 11/7, 63/40 ^8A, vvB♭
76 793.043 A♯, vB♭
77 803.478 35/22, 78/49 ^A♯, B♭
78 813.913 8/5 ^^A♯, v8B
79 824.348 ^3A♯, v7B
80 834.783 ^4A♯, v6B
81 845.217 80/49 ^5A♯, v5B
82 855.652 64/39 ^6A♯, v4B
83 866.087 33/20 ^7A♯, v3B
84 876.522 ^8A♯, vvB
85 886.957 5/3 A𝄪, vB
86 897.391 42/25 B
87 907.826 22/13 ^B, C♭
88 918.261 56/33 ^^B, v8C
89 928.696 ^3B, v7C
90 939.13 55/32 ^4B, v6C
91 949.565 ^5B, v5C
92 960 ^6B, v4C
93 970.435 7/4 ^7B, v3C
94 980.87 44/25 ^8B, vvC
95 991.304 39/22 B♯, vC
96 1001.739 25/14 C
97 1012.174 70/39 ^C, D♭♭
98 1022.609 ^^C, v8D♭
99 1033.043 20/11 ^3C, v7D♭
100 1043.478 64/35 ^4C, v6D♭
101 1053.913 ^5C, v5D♭
102 1064.348 ^6C, v4D♭
103 1074.783 13/7 ^7C, v3D♭
104 1085.217 15/8 ^8C, vvD♭
105 1095.652 49/26, 66/35 C♯, vD♭
106 1106.087 ^C♯, D♭
107 1116.522 21/11, 40/21 ^^C♯, v8D
108 1126.957 48/25 ^3C♯, v7D
109 1137.391 77/40 ^4C♯, v6D
110 1147.826 64/33 ^5C♯, v5D
111 1158.261 39/20 ^6C♯, v4D
112 1168.696 49/25, 55/28, 63/32 ^7C♯, v3D
113 1179.13 77/39 ^8C♯, vvD
114 1189.565 C𝄪, vD
115 1200 2/1 D