Wow that was really fast, you guys, thanks! Shpena, it took me about a month to write from start to finish, but that was during summer break when I have a lot more time at my disposal! And I am glad you like the part after 291, because I am rather fond of it myself. :) Also if there is any way I could hear the GPO version, I would really love to!
Pieter, sorry about the score. I find dealing with collisions and things on the score very irritating and tedious, but I promise you I am working to clean it up now. Also, you are right that the piano writing is not particularly virtuosic. I didn't intend to create a virtuosic piece, but I also didn't want to create a piano part that is static throughout the piece. So I will work to make the part more interesting. And the ending--I agree, it is rather weak. I will see if I can find it in me too write a bang from the orchestra and piano--(sigh).
Anyway, thank both of you for your startlingly prompt responses to this little piece!