# Equave

(Redirected from Interval of equivalence)

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In a periodic scale, the **equave** (/ˈiːkwɪv/ *EE-kwiv* or /ˈiːkwəv/ *EE-kwəv*), also called **interval of equivalence** or **equivalency interval**, is the interval such that pitches separated by it are considered equivalent. The term *equave* was coined by Inthar.

## Examples

- In octave-equivalent scales, the equave is 2/1.
- In Bohlen-Pierce, the equave is 3/1.
- In edfs, the equave is 3/2.