Man, I would have to hear 46 notes per second to ever believe ANYONE could play that fast. I am very skeptikal on that one. It would take sweeping up and down all 6 strings, 4 times a second. That's strumming all the strings to an 8th note rhythm at 240 bpm. Not actually seeing it or hearing, I think that's B.S. If it was done, I can't imagine it being played clean.