23-odd-limit

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The 23-odd-limit is the set of all rational intervals for which neither the numerator nor the denominator of the frequency ratio exceeds 23, once all powers of 2 are removed. To the 21-odd-limit, it adds 11 interval pairs involving 23.

Below is a list of all octave-reduced intervals in the 23-odd-limit. It contains all the wonders of 94edo.

Ratio Size (¢) Color name Name
24/23 73.681 23u1 twethu unison lesser vicesimotertial semitone
23/22 76.956 23o1u2 twetholu 2nd greater vicesimotertial semitone
23/21 157.493 23or2 twethoru 2nd vicesimotertial neutral second
26/23 212.253 23u3o2 twethutho 2nd vicesimotertial whole tone
23/20 241.961 23og3 twethogu 3rd vicesimotertial inframinor third
23/19 330.761 23o19u3 twethonu 3rd vicesimotertial supraminor third
28/23 340.552 23uz3 twethuzo 3rd vicesimotertial neutral third
23/18 424.364 23o4 twetho 4th vicesimotertial diminished fourth
30/23 459.994 23uy3 twethuyo 3rd vicesimotertial ultramajor third
23/17 523.319 23o17u4 twethosu 4th vicesimotertial acute fourth
32/23 571.726 23u4 twethu 4th vicesimotertial narrow tritone
23/16 628.274 23o5 twetho 5th vicesimotertial high tritone
34/23 676.681 23u17o5 twethuso 5th vicesimotertial grave fifth
23/15 740.006 23og6 twethogu 6th vicesimotertial ultraminor sixth
36/23 775.636 23u5 twethu 5th vicesimotertial augmented fifth
23/14 859.448 23or6 twethoru 6th vicesimotertial neutral sixth
38/23 869.239 23u19o6 twethuno 6th vicesimotertial submajor sixth
40/23 958.039 23uy6 twethuyo 6th vicesimotertial ultramajor sixth
23/13 987.747 23o3u7 twethothu 7th vicesimotertial minor seventh
42/23 1042.507 23uz7 twethuzo 7th vicesimotertial neutral seventh
44/23 1123.044 23u1o7 twethulo 7th vicesimotertial major seventh
23/12 1126.319 23o8 twetho octave vicesimotertial diminished octave

94edo is the smallest equal division of the octave to be consistent in the 23-odd limit; the smallest to be distinctly consistent in the same is 282edo.

See also