oh shit he's blind and blind people cant do anything what a champion.

Sheeeeeiiiiiiiitttttt

There are some pretty awesome videos of him playing things like Beethoven's opus 106 piano sonata (one of the most difficult piano compositions around. Certainly the most difficult that Beethoven wrote) and Rachmaninoff's 2nd piano concerto.

Seeing as how he's blind, I'm really wondering how he learned the music and learned what all the notes were.

He's got a career ahead of himself.

Kastle is an as because in all his comments he praises himself, but says things in such a way as to imply that he isn't himself. That is to say he refers to himself in the third person with a screen name that doesn't make it clear that it's himself that he's talking about.
That was almost clear.
Anyone who can play the piano impresses me, so this guy leaves me nearly speechless. Yes, this is as close to speechless as I get.

I just watched this song performed by Daffy and Donald Duck last night. So, Not as fun here. (The Roger Rabbit part starts at 5:19, if you doubt me.)