baritone? First, I apologize to WHS if it seemed I was putting him down. Not intended. I do believe, however, that terminology as to what a note is called should be universal, and double high C has been used since the walls of Jerico came down. Most importantly, I think we are all in agreement on this subject. We're just approaching it from different perspectives. Improvement has come from the reasons stated, but it probably isn't a fix-all for all players. Concentration on your primary instrument, practiced correctly, will accomplish the same thing.