Question: Which major Russian composer of the 20th century wrote a piece that was premiered by the Beethoven Quartet in 1964?
Sentence (from "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.
Relevant evidence: Yes