If you’ve ever watched a Dario Argento film, you know how important music is to his art.
After collaborating with Ennio Morricone on his first three films, Argento used an Italian progressive rock band for his 1975 film, Deep Red. Argento and Goblin turned out to be a perfect match and the band went on to compose and perform the scores of several other Argento films, most famously for Suspiria.
In this clip from 1975, Goblin performs the main theme for Deep Red on an Italian TV show. (Sorry, I don’t know the name of the show.)