The document provides background information on the Russian composer Dmitri Shostakovich, focusing on his early life and works including his First, Second, and Third Symphonies as well as his controversial opera Lady Macbeth of the Mtsensk District. It discusses Shostakovich's youth and early success in the 1920s during a period of relative artistic freedom in the Soviet Union. It then examines how the rise of Stalinism in the 1930s led to increased censorship and the imposition of Socialist Realism, negatively impacting works like Lady Macbeth which was initially praised but then condemned for formalism. The document also provides plot summaries and musical analysis of the three symphonies and opera.