19edo

From Xenharmonic Reference
Revision as of 21:14, 22 January 2026 by Inthar (talk | contribs)

19edo is an equal division of 2/1 into 19 steps of 1200c/19 ~= 63.2c each.

19edo is interesting as a flatter Meantone system; it is in fact very close to 1/3-comma Meantone (i.e. Meantone with exact 6/5). It has interordinals and supports semiquartal.

Basic theory

Prime harmonic approximations

Approximation of prime harmonics in 19edo
Harmonic 2 3 5 7 11 13 17 19 23
Error Absolute (¢) 0.0 -7.2 -7.4 -21.5 +17.1 -19.5 +21.4 +18.3 +3.3
Relative (%) 0.0 -11.4 -11.7 -34.0 +27.1 -30.8 +33.8 +28.9 +5.2
Steps

(reduced)

19

(0)

30

(11)

44

(6)

53

(15)

66

(9)

70

(13)

78

(2)

81

(5)

86

(10)