AdvertisementLook, He Made A Hat: Sondheim Talks SondheimOctober 28, 2010facebookEmailHappiness is a good rhyme: Stephen Sondheim's new memoir takes its title from a lyric that captures what songwriter Paul Simon -- in a New York Times review of the book -- describes as "that feeling of joy, the little squirt of dopamine hitting the brain" when an artist is at work.