I saw him with Whitesnake in Leeds on the Saints & Sinners tour, according to setlist FM that was Dec 1982 which fits as i recall it was blowing a blizzard with snow as I left. Micky Moody was still in but Galley had taken over from Marsden. Powell on drums, Lord on keys. Pretty good gig from what I recall. Didn't really appreciate how good a player he was until I saw him do a little solo piece at an Alexis Korner memorial show many years later. I don't think I'd heard any Back Door even by then, slipped under my radar.