This question is probably a crossover with mathematics.
I'm charting a song into a music game. The song has numerous #/12 time signatures, but the game can only handle power-of-2 signatures (#/4, #/8, etc).
As a workaround, I'm trying to use #/16 and increase the BPM so it takes the same time as if it was in #/12. However I can't figure out how much faster.
What is the formula for how much time a measure takes, given the BPM & time signature?