you see the problem with this logic is that for most of my 25 years of trumpet playing -- before this comeback. I too was "programmed" to believe that DHC was totally out of reach. I was taught to believe that high notes (above high C) were virtually impossible to the most average player - like me. I've worked very hard for 2 years now -- and I say High notes up to DHC are available to everyone with normal abilities --dedication, discipline, and working beyong what you believe you can be. but that is just my opinion.