90edf

← 89edf 90edf 91edf →
Prime factorization	2 × 32 × 5
Step size	7.7995 ¢
Octave	154\90edf (1201.12 ¢) (→ 77\45edf)
Twelfth	244\90edf (1903.08 ¢) (→ 122\45edf)
Consistency limit	4
Distinct consistency limit	4

90 equal divisions of the perfect fifth (abbreviated 90edf or 90ed3/2) is a nonoctave tuning system that divides the interval of 3/2 into 90 equal parts of about 7.8 ¢ each. Each step represents a frequency ratio of (3/2)^1/90, or the 90th root of 3/2.