“I can’t mention Led Zeppelin IV without including the first Black Sabbath record. Bill Ward is on the same plane as John Bonham, although he’s a very different player. Bonham had this full, in-your-face ferocity and such a groove – even if you didn’t like Zeppelin, you got sucked in because of his backbeat.
“With Black Sabbath, it was more haunting overall. Bill Ward’s drums were like a constant tom roll; he had a very jazzy swing, which actually made the guitar riffs sound crazy. A lot of guitarists will want to kill me for saying this, but if you took away the drums, those riffs wouldn’t sound as demonic. Bill added something very necessary to the sound and the impact of the band.
“Listen to the song Black Sabbath. In the middle, when Bill crashes into the full-time and Geezer starts going crazy, it’s all improv. That’s what I love about this shit: They were saying, ‘OK, we’re recording. We know we’re supposed to jam here. Fuck it, it’s on the fly.’ You can hear the honesty. Bill didn’t practice it or orchestrate it; he wasn’t doing what he thought was best for the vocal – none of that. He just played what he felt when he felt it, and that’s the track that went out all over the world that people still listen to.”