i agree with Michael. Play anything and everything you can. The more you play, the less you haven't seen! Familiarize your self with every rythm possible. the more you know, the more sought after of a trumpet player you will become. I play everything i can get my hands on. am i the best site reader int he world? hell no! but i more oftent han not i can play what's put in front of me with out ever seein it before. if i can't, then there's something i can now say i've seen, so i can play another piece with it in it and not have to worry about it.

Good luck!
Crazy