Trombone Player

John is taking advantage of the music education offered at school in the beginner band. For his instrument, he has chosen to play the trombone. The student rental from the music shop is very reasonable.

He is brand new to the world of reading music, and when his band director asked him what note he was playing, John responded "D minus."  To this the director quipped, "I didn't ask you about your grades! That's a D Flat"!