Great composition!
I have a new-found interest in jazz, and seeing this post in the AA thread got me all excited. The playing is excellent, of course, and the quality of the recording is very nice. The expected variety in this piece does not bore me at all, yet at the same time strays from being too random -which I suppose would also bore me. So good job on that. :p
The quiet parts with that lively bass are very refreshing to hear in this busy piece. Quite the unique instrumentation, and with 8 minutes of that, too! If I must pick, my least favorite part is that very abrupt ending. The slight applause certainly startled me.
Overall, lovely stuff.