The topic sounds interesting, but I can't tell whether the interesting part is supposed to be the preprocessing, I.e. going from a raw music file to some sort o

The topic sounds interesting, but I can't tell whether the interesting part is supposed to be the preprocessing, I.e. going from a raw music file to some sort of binary vector, or the actual beat detection, which could ostensibly work on any binary vector. Wouldn't one just do a Fourier transform for the second part?