That's not the same as "Making sure DJs are only playing the correct versions and the right quality". ASCAP doesn't care where the music was sourced from. They don't care who's singing it, either. The only thing ASCAP cares about is making sure that the songwriters and publishers get paid whenever (and wherever) their music is played in public. ASCAP doesn't care if there's a DJ in the building or just a radio playing in the background. If you're making a profit at a building serving the public and there happens to be music playing, they want their piece of the pie.