I don`t know why but when I play one open note up from middle G it comes out as middle Bb instead of high C. Does anyone know why this notes isn`t on fingering charts but I keep getting this note?
Thanks

you`ve got me confused see if you can clarify first of all what octive are you talking? in the staff, below the staff, or above the staff to high c up there, or the c above that etc? you say middle but unfortunatly no one has come up with a way to verbaly name octives in a standard form. and what key are we talking I think we`re talking in our major key not concert key right? because otherwise you`d be saying from our "F" to our "Bb" and "G#" keeps coming out but that can`t be right asuming you play a Bb pitched trumpet but I can`t see how a Bb is open in the staff or below the staff and I`m pretty sure Bb is first valve above the staff for as high as one can play, now the "d" above the staff is played open but I don`t think Bb is of course I could be mistaken.

I`m talking about the Bb that`s on top of the first ledger line; the one right above the staff.

The Bb that is coming out open is the Bb in the seventh partial. This is not on any fingering charts because the note is really flat. The seventh partial is not used for any notes on trumpet due to this. It is sometimes used on trombone (where they use short positions to make up for the intonation problems). The only reason you would want to practice using this note is if you were doing lip slurs.

Thanks for the help