Geezer Butler

Is often credited as Black Sabbath's principal songwriter.

[on the issue of a new 'Black Sabbath' recording, 2013] It's like the old saying - you do what you know best. You sort of forget all the keyboard bits and all the multi-instruments and just get back to the basics, like on the first three or four albums, and just keep that live feel. We had the sort of philosophy that if it wasn't done in four takes, then forget it.