(all due credits to Mewfour. Damn you, why couldn't you NOT do something I have to give you credit for? )
Anyway. The concept is simple. Your fanfic is a movie. What would the soundtrack be like? What songs and musical pieces would it use?
I'll post the Ambition's Debt stuff shortly. Once I can convince myself that listening to Carl Orff's O Fortuna all day long is NOT wise ^^;