附註:George and Ira : the music and the words -- The musical theater -- Ira and me -- Michael and George -- Music and society -- "One plus one equals three" : love songs and how to write them -- Performing and interpreting the song -- Why some songs survive and others don't -- The top of the mountain? : Porgy and Bess -- Hollywood and the end -- George Gershwin's musical reputation -- What might have been.