Music critics and fans look back at the 30-year career of progressive rockers Pink Floyd, famed for their hugely successful concept albums and elaborate live shows.

A look at the rise of heavy metal pioneers Black Sabbath. The hell-raising quartet, led by Ozzy Osbourne, changed the face of rock with the release of Paranoid in 1970.

A fascinating look at the rise of English electronic band Depeche Mode, whose catchy compositions throughout the 80s influenced much of the electronic music that followed.