Tony Iommi and Brian May plan an album of Riffs. This could be cool!

Brian May and Tony Iommi have revealed plans for a collaborative "riffs album", allowing the guitarists' unused material to be borrowed and built upon by fans.

Iommi lifted the curtain on the rockers' secret project in a recent interview for Kerrang! magazine (via NME). "When are we going to get to work on that album of riffs together?" Iommi asked. "You know what I'm talking about."

May certainly understood the Black Sabbath musician's reference: "The record he's talking about was supposed to be a secret but I guess he's blown it now," he said. "I'm very, very keen."

Apparently the plan was hatched when May visited Iommi's studio and heard some of the hours of unreleased guitar jams on tapes and hard drives. "I thought it would be great to make a compilation out of them," the Queen guitarist explained. "The idea was to put all these riffs out in some form so that people could build their own songs from them. You could make your own music with Tony Iommi on guitar!"