Wow. I am new to this board and I have been reading around trying to get to know what this website is all about. Up to this point, I have been relatively pleased by what I have found. Unfortunately, this comment has really turned me off from this site. Actually this whole thread has. I do not claim to be a great musician, but people like Joshua Bell and Keith Jarrett ARE great musicians and I do not believe that someone "moaning" or moving through their music is a bad thing. Ever heard of Glenn Gould? An undisputed genius. Anyone who complains about his (almost) ever present humming is written off as an idiot. Or, I just finished watching "Straight, No Chaser" about Thelonius Monk, again an undisputed genius who moves like a madman in some of the performances when he slaps his foot around keeping the beat, or stands up and does a few twirls before he sits to play again. Yes, some musicians don't need to move to be musical - great example: Jascha Heifetz, criticized because he moved too LITTLE. He was considered by some critics to be a machine, technically brilliant but not musical. And again, he is an undisputed genius, one of the greatest violinists of all time. So, why don't we all just sit back and enjoy the music. Don't complain about how musicians move or groove to their music, either close your eyes and open your ears or leave and let the rest of us enjoy some extraordinary music. :)