Hi Terry, just a quick note that I really love the trombone BUZZARD my brother got for me. I buzz a lot, driving to gigs, warming up, just walking around. A big plus is that in some clubs you have no place to warm up as you would disturb the people, so now I can warm up with the BUZZARD with the same air resistance as my horn so Im ready to play with out overblowing the horn. I also use it daily as a warm up tool when practicing. Anyway great invention, and I will tell others about it too.