interval2ratio

pitchtools.interval2ratio(interval)

Convert a semitone interval to a ratio between 2 freqs.

Parameters:

interval (float) – an interval in semitones

Return type:

float

Returns:

the ratio between frequencies corresponding to the given interval

Example

>>> f1 = n2f("C4")
>>> r = interval2ratio(7)  # a 5th higher
>>> f2n(f1*r)
4G

See also

ratio2interval(), r2i(), i2r()