GZR, FEATURING BLACK SABBATH'S GEEZER BUTLER RELEASES 'OHMWORK' The title of Ohmwork came about because all the songs were written in Geezer's home studio and it was like `homework.' And since modern music can't exist without electricity, (and since the `ohm' is defined as a unit of electrical resistance) the title became Ohmwork." Be assured, however, that listening to this album will not be `work.