speed change with pitch.

I have a question.

If I have a loop which is 80 bpm at C-4, I know that its 160 bpm if I play it at C-5. but what with other pitch-changes ? what bpm is it at d-4 or f-4 ?
is there a way to calculate that ?

it mostly depends on how the other notes’ frequency are calculated.

the Equal temperated scale says follows this function:

f(n) = f(n-1) * 2 ^ (1/12)

where f(n) is the frequency of the nth tone, and A3 is arbitrarily taken at 440Hz.

sometimes my posts can be helpful too :ph34r: