“iTunes is changing the way music is marketed. Consumers can now find online remixes of popular songs, live performances, singles released in-between CD cycles to keep an artist fresh in fans’ minds. You’ll be out of luck scouring the record bins for an ‘Ike & Tina Turner’ disc, but you’ll be have no trouble downloading such classics as “Proud Mary’ on iTunes,” Dawn C. Chmielewski writes for Knight Ridder News.

“In fact, only one-third of the songs sold on iTunes are Top 20 hits. Larry Kenswil, president of Universal Music’s eLabs, said his label would soon begin experimenting with world music