Yes, "INCREDIBLE STRING BAND" was the association I had . . but I thought I'd look even more stupid if I asked "Is that Robin Williamson of ISB fame" and it turned out I'd got the name wrong . . .(Personally, ISB lost their charm many years ago, so I've simply ignored everything he's done since. No doubt that's my loss, but "life's too short . . .") THANKS for putting me straight, Ian C.
G.