Jeff Smith's "The Sound of Commerce", published last year by Columbia University Press, provides useful information on how film studios created their own record divisions to market soundtracks and create hit records out of the "theme songs" to their films.
As for novelizations, I don't recall much on the subject, though they've been around in one form or another for nearly as long as there have been feature films..
Robert Hunt

----
To sign off Screen-L, e-mail [log in to unmask] and put SIGNOFF Screen-L
in the message.  Problems?  Contact [log in to unmask]