Yes, that's what I was trying to get at regarding the composition of his body, the bow, and the guitar--they form a sort of circle (well, flattened circle) that makes an organic whole, so that there's no clear place where Jimmy ends and the guitar begins. It's self-sufficient, hence the effect of shutting us out--not in a hostile way, but in the sense that he's complete right there. And then the burst of power where the bow hits the guitar is like what galvanizes the whole organism--again, this is just what the photo suggests, and why b&w is so evocative.