If you're interested in the creative process (in this case, how it manifests in music) I've got a treat for you. If you're unable to resist surfing the web when you should be working, look away now....otherwise, you're going to love the Joe Smith Collection at the Recorded Sound Reference Center of the Library of Congress.
When Smith retired from his job as a music executive in the 80's he set out to record interviews with the top singers, musicians, song writers, music executives. He caught 200 of them including Ray Charles, Bob Dylan, George Harrison, B. B. King, Dick Clark, and on and on. This year he donated all the raw recordings to the Library of Congress and a small selection of them are available for you to listen to at this website: http://www.loc.gov/rr/record/joesmith/
I think whichever of the arts you're interested in you'll find something of interest in the words of Tony Bennet (including his credo that you should never insult the intelligence of the public) and many of the others in this collection.
I hope they'll continue to make more of them available on the site.