In 1937 Russia, at the height of Stalin’s purges, the Communist Party strongly denounced Dmitri Shostakovich’s most recent works. Fearing for his life, the young composer wrote a symphony ending with a rousing march. But to many, the triumph rang hollow. Even today, people wonder just what Shostakovich was trying to say. Was the symphony meant to celebrate Stalin’s regime? Or did it contain hidden messages protesting the very system it seemed to support?