Just out of curiosity.. does anyone know the fastest (in bpm) song ever written/played? That is not including any form of electronic stuff or speeding up an original.. I mean a song that had an extremely fast tempo from the first instance.. Is 400bpm possible? 600bpm? I somehow doubt 600.. but may be 400? As I say.. just curious.. I'm not a huge fan of speed-geeks.. but it's still interesting to me.