The Stamp exercises, perhaps more than other brass methods, emphasize musical principles as much as physical concepts to accomplish the desired technical results. Perhaps the most famous Stamp aphorism was that if it sounded correct (i.e. in-tune) then one was doing it correctly. Or, conversely, if one did not play correctly it would not sound correct. Indeed, everything that has been said or written about Mr. Stamp and his teaching/playing concepts reinforces this basic idea.