Well now I have my Bach 300. I have no ambition for trumpet playing except for my own interest. I am using the Hal-Leonard level 1 book/cd. I usualy do fairly well, however there are times when no matter how much I try I wind up with a gargle sound to the note. And after awhile I feel like I just climbed ten flights of stairs. Any suggestions would be GREATLY appreciated. What I can't understand is that this is not a constant problem.