hey guys, i recently got involved with a drum corps, and they issued me a soprano trumpet in the key of g. normally i play my Bb horns... my question is this: are the mouth pieces interchangeable? are the fingerings the same? will this horn make it easier to hit the notes in the music they gave me that i laughed at? is there anything else i need to know or consider when switching from Bb to G? thanx for your input!!