Dmitri Dmitriyevich Shostakovich (Russian: Дми́трий Дми́триевич Шостако́вич , tr. Dmitriy Dmitrievich Shostakovich, pronounced [ˈdmʲitrʲɪj ˈdmʲitrʲɪjɪvʲɪtɕ ʂəstɐˈkovʲɪtɕ]; 25 September [O.S. 12 September] 1906 – 9 August 1975) was a Soviet and Russian composer and pianist. He is regarded as one of the major composers of the 20th century, with a unique harmonic language and a historic importance due to his years of work under Stalin.
Franz Joseph Haydn (; German: [ˈfʁants ˈjoːzɛf ˈhaɪdn̩] (listen); 31 March 1732 – 31 May 1809) was an Austrian composer of the Classical period. He was instrumental in the development of chamber music such as the piano trio. His contributions to musical form have earned him the epithets "Father of the Symphony" and "Father of the String Quartet".Haydn spent much of his career as a court musician for the wealthy Esterházy family at their remote estate.