So, I'm writing a Trumpet-Flute duet. I finished, but now I have a problem. Flute is a C instrument, so I have no problem there, I don't need to transpose, but a trumpet is a Bb instrument, and I need to transpose. However, every time I try to transpose just the trumpet part, it transposes the whole darn thing! Is there anyway to fix this so I can transpose one instrument but not the other???