I cleaned my trumpet and then left it in the bath tub to soak for about half an hour. But when I put it back together, air won't travel through the horn. The cork on the tuning slide seems to be blocking air. I think it might be because it's wet or something. Please, should I let it dry or something? Any suggestions? I have jazz band evaluation tomorrow with my school's band, and I won't be able to play! And, yes, I'm new here, I just don't have time to introduce myself because I'm in a hurry. Sorry.