Have you ever heard of Erik Satie, Foz? The name mightn't ring a bell, but you might of heard his piece - "Gymnopedie" (this is where my username came from, lol) somewhere in passing. Probably one of the most tranquil pieces of music I have ever heard:
Yeah, it was on numerous movies and television shows, Foz. I enjoy nothing better then listening to this after a tough day. It would put you into relaxing mood.