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How rocker and film score composer Tyler Bates went from Marilyn Manson to ‘Guardians of the Galaxy’

Aliens, witches, demons and ghouls: Tyler Bates has written music for the best (and worst) of them.

If you shuddered during “Dawn of the Dead” or “Halloween II,” felt a chill watching the TV series “Salem” or listened to anything from the last two Marilyn Manson records, Bates is partly to blame for your PTSD.

The composer, who scored both “Guardians of the Galaxy” films and is behind the upcoming season of Fox’s “The Exorcist II” and Netflix’s “The Punisher,” is a master at making audiences feel uneasy — at least in the music he makes.

“I grew up in a haunted house, I swear,” he said recently from his hillside home studio in the San Fernando Valley. “It was more like a log cabin, in the woods in a rural area outside Chicago. Al Capone once lived there. People were probably murdered there. It’s where I grew up, which explains a lot.”