The times I've seen him play, I've noticed that he's a very competitive musician on the stand. It seems like he has, on these occasions, tried to push the music rather than let it just happen. Some recordings I've heard - the AOTW included - do not really give off this vibe, but in a live setting it is noticeable and sort of distracting. So, with respect to his "turning the beat around," it could have been part of that competitive seed coming to bear on the situation.