If you want to talk all that talk about due-paying, then Cul De Sac have been experimenting since the 70s and are a kind of indie Grateful Dead because of that. Glenn Jones has done time, inside Cul De Sac and out. He sat at the feet of John Fahey and worked with him, somewhat frustratingly. Fahey also did serious time, and played Manchester before he died, in lovely red football socks, shorts and a Harold Shipman beard. The 'tunes' matched the dress connotations. Fahey's last tour was conducted by ex-psychiatric worker Paul Kelly and apparently ended in some appropriately RD Laing / Felix Guattari-style 'therapy'.