I know that Don van Vliet (the off-stage name of Captain Beefheart) is something of a celebrated artist - Abstract Expressionist? - but has anyone ever seen any of his pictures? Are there any on show in UK galleries or any books about them? (This kind of follows on from boatman's Nick Cave question: You have 40 minutes on whether your music idols be allowed to dabble in other art forms. Discuss)