The link between beginners and parents in the thread title suggests this might be only for children. Can the one who created this thread shed some light on what the original intention was for the expected category of posters? I'm on old geezer picking up clarinet and flute after more than 50 years playing sax, and was hoping this might be a fresh new source of information to prevent unnecessary wrong foot approaches, i.e., staying on the fast track to successful doubling.