 transpose the music written before him, the written music before him in F as an alto saxophone part that would flip him into A flat. And there are a lot of rules of orchestration and placing music notes on paper. And if Bill Pemberton, who was one of my music teachers, I'm sure most of you have never heard of him. He played bass with Earl Hines, was here. He would say, what clef do you write the sarusophone for?