I have two books only actually (besides having some magazines from the old times, although no FSM):
– Tony Thomas: Filmmusik (German version of the book “Film score”)
– Fred Karlin: Listening to Movies
I did read some more some decades ago like the “famous” polemic Eisler/Adorno “Komponieren für den Film” and the two “Handbuch Filmmusik” parts by German film composer and professor Enjott Schneider as far as I recall.