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Nice! Thanks for posting that raj87. The eccentric Muir was in a league of his own and didn't last much longer with King Crimson than anyone else not named Robert Fripp.
Listening to Supertramp reminded me of this thread, in particular, the great John Helliwell (saxophone).
+1 for Bela Fleck but I wouldn't exactly call him "rock". Not to sure what genre to classify him in. What about Future Man? Does he count?