He will be compensated by both the buyer and the seller. Music will be packaged by info-tailors who know your taste and will either sell you music by the chunkor rent it to you. There's a lot of talk about Patricia Maes and her algorithmic agents doing the tailoring for you. Very impressive stuff. But humans can do a lot better.
Algorithms are limited.
All the Web has now is traditional content. That's not the way we're going. Within the next three to five years you're going to increasingly see the delivery of human work over the Web. You already see it in some form, but almost all of that is E- mail. The notion of delivering work over the new medium is something that the current Web is almost unaware of, but that's where the big gains will be.