Which major Russian composer of the 20th century wrote a piece that was premiered by the Beethoven Quartet in 1964?
String Quartet No. 9 (Shostakovich): Dmitri Shostakovich's String Quartet No. 9 in E-flat major, op. 117, was composed in 1964 and premiered by the Beethoven Quartet. Dmitri Shostakovich: Dmitri Dmitriyevich Shostakovich (Russian: Dmitriy Dmitrievich Shostakovich , ] ; 25 September [O.S. 12 September] 1906 9 August 1975) was a Russian composer and pianist.
Dmitri Dmitriyevich Shostakovich