Dr. Mike, I didn't think you were addressing me directly either, but I hope my detailed expose helped augment your effort to prevent misinterpretation. More than just the aerobic benefits, I just don't think anyone can believe how much playing all these "brass beasts" helps "improve your > [my] quality of life". No, I havn't yet recovered the capability I had regained in my first comeback after 44+ years in 2006-2009, but it hasn't been due to the medical issues, but the dental that I just completed this past year, only a couple of months ago with present full upper denture and partial lower denture (I've only 4 lower natural teeth left). Yes, it's a task to rebuild a lip - embouchure, but I did it once and forsee no rationale why I can't do it again. Presently, at least I'm far ahead of 4 5th grade beginners I'm tutoring which is not to say the first book exercises I now demonstrate to them are not now also helping me.