They take what they need and leave the rest. Their product is relentlessly mediocre. While this doubtless makes the production of music more orderly and businesslike, it probably doesn't do much for its artistic interest or integrity. Thousands and thousands of composers distribute music over the internet. Musical styles and variety explode.
Consumers search the internet for music.
The problem is finding music that you like. People trade acts, titles and URLs with their friends. Fans put up fan sites and review music. These sites are important to the success of acts. Retailers burn CDs on demand.