For most of Fulci's best loved films, the score was composed by Fabio Frizzi. These scores are some of the most etherial and creepy ever composed. They pulse and throb and oh yeah...they are chillingly groovy.
Frizzi did his time, like most of the greats, composing for a variety of genres from spaghetti westerns to poliziotteschis, but when he began his collaboration with Fulci, on the excellent spaghetti western Four of the Apocalypse, he soon hit his stride.
In my opinion his best scores are for Paura Nella Citta dei Morti Vivendi (City of the Walking Dead), Zombi 2 (Zombie), L'Aldila (The Beyond), and Manhattan Baby.
Check out these favorites: