The music that accompanies The Thing perfectly captures the isolation, mystery and fear that the characters experience throughout the movie, with a dark, ambient opening written and preformed by Ennio Morricone using only bass guitar and synthesizers, setting an eerie tone early on.
This one is probably the strangest one on the list. The soundtrack is densely layered and noisy, a nightmare-inducing sonic journey. The mood of the soundtrack seamlessly changes styles throughout the film. Like the movie itself, the soundtrack is strange, terrifying, and unnerving, reinforcing the apocalyptic and frightening imagery on screen.
While director William Friedkin himself selected a bunch of modern classical pieces to serve as mood music for the film, he'd also originally hired composer Lalo Schifrin to pen an original score. When the film's original trailer was shown with part of Schifrin's score, viewers freaked and producers worries the music might have actually made the movie too scary. Legend has it that when Warner Brother's eventually made Friedkin tone down the soundtrack, he hated it so much he threw the tapes from a second-story window into the studio parking lot – eerily evocative of a scene from the film itself.
Still, what made it into the film was certainly creepy enough.