I have thought of this more times than I can remember. Could there be a time in music when every new beat has got a replica in the past? When however you wax a song somebody has already made it exactly before? But I seem to relate this phenomenum with infinity which implies that there must always be something new no matter what. Something akin to trillions of people living and dead having different finger prints. Oooppps! I am not too sure of this. It could be there are exact matches of finger print of some modern people with those who worked in the graden of Eden.