Jazz circle regular concert

Today, I am going to play last practice.
I join Jazz circle, and play the trumpet.
Tomorrow, Jazz circle regular concert is hold!
It is apart two parts.
First, combo part which is few people(about 4~6 parsons)play the Jazz.
Second, Big band which is many people(about 15~30 parsons)play the Jazz.
I will appear on Big band part.
I feel so nervous because I don't know that I can play well. I don't want to fail.
But I also feel fun because I continue to practice hard for 3 month. Maybe I can play well, I believe myself!
Jazz circle regular concert hold on tomorrow, so if have free time, please come to listen!
Incidentally, I wrote a poster of regular concert. If you find it, please look it!