Table 3.
Common Microtonal Intervals of Just intonation
Interval
Example
Ratio
Cents
Sound
diesis
C
♯
-1
–
D
♭
+1
2048:2025
19.55
syntonic comma
C
0
–C
+1
81:80
21.51
Pythagorean comma
C
0
–
B
♯
0
531441:524288
23.46