Their sound would have been even more complex had an idea to incorporate Jimi Hendrix into the line-up come to fruition.
‘Jimi and I toured together when I was with The Nice,’ Keith Emerson says.
‘His drummer, Mitch Mitchell, talked about getting him to join ELP, but, quite honestly, I wasn’t that interested.
'I’d jammed with Jimi, and he was so loud he would have drowned me out.’
Greg Lake adds: ‘Keith and Jimi both understood music brilliantly, but there would have been clashes. Plus, we’d have had to call ourselves HELP!’
Source : http://www.dailymail.co.uk/tvshowbiz/article-1293214/Spinal-Tap-We-real-kings-prog-rock-say-Seventies-showmen-Emerson-Lake-Palmer.html