Black Sabbath guitarist Tony Iommi has gotten into TV scoring.

Iommi announced that he’s contributed music to Sunday’s episode of CSI. He says, “I was asked if I’d be interested so I had a look at the footage and came up with an idea they seemed to like. It’s not very long, but it was different working with images rather than just music. I’d certainly be up for doing more.”

The episode, titled “Girls Gone Wilder,” airs at 10 p.m. ET on CBS.

Iommi adds that, “I’m getting back in the studio having tried to make myself rest after the tours. I’m writing, mostly just putting ideas down rather than complete songs. I like to create all sorts of moods with my music and then decide later how they might be used.”