I prefer that "strange arrangement" to the one our community band (
http://communitybandofbrevard.org/) did in the 9/13 concert. It is a medley of only the dance tunes from the show. Nobody recognized most of them and everything was in a minor key. Depressing.
Join the club. I stopped going there and . For you, I think a touch of classical-style vibrato would help. By the way, that's Prelude in C
minor. You had me wondering. I play both preludes on piano (or used to) and could not imagine an instrumental version of the Prelude in C. Very pianistic piece.
http://www.8notes.com/scores/2703.asp
It's doable, I suppose, and I'd like to hear it, but I think the flow of the piece depends on a two-handed keyboard approach. It's my favorite of the Chopin preludes.