Mark and Stuart talk to the musician Jah Wobble, whose introduction to the bass stemmed from a long-held obsession with dub reggae music. He was the original bassist for Public Image Limited (PiL) until the mid-80s, when he decided to go solo. His album, Rising Above Bedlam, was shortlisted for the Mercury Prize in 1992, and he started up his own independent record label in 1997. He talks about his forthcoming autobiography, Memoirs Of A Geezer.