This guy, Josh Barron, has arranged the KH tunes for piano. What I'm listening to is the MP3 render of a midi. And man do I want to learn how to play it. I can only play the top hand so far.
By the way, if anyone wants any good smooth jazz, the Rippingtons have several albums out, along with Russ Freeman. I'm listening to their first album, Curves Ahead. My dad has like 7 of their CDs, so I know a little bit, and I like it.