The hallmarks of popular music - artist independence and diversity of voices - are threatened by a contracting marketplace of record companies, radio ownership and playlists, as well as increased use in advertising. Big-name artists, historians and economists explain how popular music is produced and marketed and critique its current state.

Cast:Thurston Moore, Chuck D, Ani DiFranco, Michael Franti, Kathleen Hanna, Reebee Garafolo,

Genre:Documentary, Music,

country:United States of America,

Production:Media Education Foundation,