| Do you have the sheet music to it? I bought it with some extra cash I had just to see what it was like because I'm a huge Proto fan. I worked it up and as far as difficulty level, it's about on par with the Sonata 1963. The piece made much more sense after I heard the recording of it too. The rubato nature makes some of the really intimidating licks easier to pull off knowing you have some time in which to do it. The hardest part for me was going from naturale, to ponticello, to col legno and back again. I wanted to program it for my upcoming recital in April, but I just didn't see it fitting into the general program that I wanted to present. | 
