Agreed. I was talking about alternate fingerings on the staff and fingering combinations that are easier to play in fast runs. However, the A one ledger line above is often high and sounds better with some slide or with only 3rd valve on short notes. Arban has plenty of alternate fingerings, even in the musical pieces. As far as the upper register goes, it's not my territory. Above high C I repeat the same fingerings as above middle C and it works suprisingly well on good days. I can sometimes go up to high F like that, and it's in tune (well ,seems to be anyway). Needless to say, I don't own these notes. Not that I'm that possessive: I don't need to own them, I just want to play with them. I'd gladly use someone else's notes, but they don't like to share... Some day perhaps As far as tuning with others, resultant tones are definitely the way to go. Plus it's really kinda fun to do.