originally said by the prince of darkness himself Ozzy Osbourne when talking about Tony Iommi in an 1980's interview
ozzy osbourne - "..whatever I've said about Tony Iommi in the past, was a lot of anger, a lot of bitterness on both parts, but I've got to be truthful to you, he was one of the greatest all time riff merchants, I mean, he came up with some classic heavy metal riffs"
man 2: it's sabbath!
man: who's the lead guitarist?
man 2: you idiot.. thats Tony Iommi, he's probably metals' best riff merchant!