What's the ideal way to do this? (Score 1)

I may have a position with a very, very large music distributor in the near future, so I figured I'd throw this question out: What's the ideal way to make an online music service? Most if not all people reading this will have obtained music online, either through legit channels or not, and I'm sure every slashdotter has an opinion on what problems there are with the availible systems. Hit me back.