Music

To find out what songs appear at which points in the films, go here.

To find the track listings of the most complete available recordings of Alan Silvestri's score, go here.

How would you like to hear the music from the trilogy every time someone phones you? Get the ringtones here.

Lyrics

Charles Lewin's site has lyrics for all the Back To The Future songs here.

Sheet Music

There is sheet music for various songs and tunes from Back To The Future at Craig Keightley's site here. Not sure about the legality of this, what with copyright and everything, but there you go.