19/18
| Ratio | 19/18 |
| Monzo | |-1 -2 0 0 0 0 0 1> |
| Size | 93.603014401528 ¢ |
| Name(s) | greater undevicesimal semitone greater undevicesimal limma undevicesimal minor second |
| Color name | 19o2, ino 2nd |
| File:Ji-19-18-csound-foscil-220hz.mp3 [sound info] | |
In 19-limit Just Intonation, 19/18 is the "greater undevicesimal semitone," measuring about 93.6¢. Its octave complement is 36/19, the "undevicesimal major seventh".
The small comma (39/35)/(19/18)^2 = 12636/12635 is tempered out in {{#rreplace: 53, 130, 140, 243, 270, 422, 513, 665, 742, 795, 935, 1178, 1065, 1205, 1308, 1395, 1448, 1578, 2000, 2190, 2243, 2460, 3125, 3178, 3395, and 4703 EDOs|/(\d+)(\D+)?/|\1\2}}.
The password comma, (256/243)/(20/19) = (19/18)/(135/128) = 1216/1215 is tempered out in {{#rreplace: 12, 29, 41, 53, 65, 77, 87, 94, 99, 106, 111, 118, 130, 140, 152, 159, 183, 193, 205, 217, 270, 282, 311, 323, 364, 400, 422, 581, and 692 EDOs|/(\d+)(\D+)?/|\1\2}}, leading to a variety of temperaments which identifies small undevicesimal semitone with Pythagorean limma and greater undevicesimal semitone with major limma respectively.
See also[edit]
- 20/19 - small undevicesimal semitone