Can anyone please demystify this thing for me before I go and do it myself How does the Bb trumpet affect the trumpet MP pitch when the MP is connected to trumpet? For example I want to play a centered ‘G’ in stuff which is a concert F. What concert note should I buzz on the trumpet MP alone so that when connecting the trumpet to the MP while buzzing I get a nice centered concert F? In other words, is there a transposition between the MP pitch buzzed alone and a resulting pitch on the trumpet connected to the MP? Edit: I want to clarify that I asked this question on purpose. I think it makes sense to practice MP buzz with understanding what pitch I'm targeting. Then I connect the trumpet and apply the fingerings I have in my mind when buzzing on the MP and get the pitch on trumpet at least very close to what it's meant to be.