For years I've been a jazz and commercial trumpet player. Recently, I was given an opportunity to join a top-notch brass band. I'm playing 2nd cornet and enjoying it very much. I'm getting my legit chops, reading and multiple-tonguing back...better every week. The one thing I am struggling with is playing after-beats on a up-tempo piece. I start out fine but lose it quickly. I'm struggling to keep from throwing the other 2nds off. It's really embarrassing for me. Any suggestions? Thanks!