 If you tuned in in the middle of that piece, who do you think wrote that? You might be surprised to learn it was Aaron Copland. Yes, some very young, very early music of a young Aaron Copland. 1921, his piano sonata played by Ramon Salvatore. We heard George Gershwin's Cuban Overture a while ago. Let's return to George Gershwin for this from Porgy and This.