Dmitri Shostakovich's String Quartet No. 10 in A-flat major, Op. 118, was composed from 9 to 20 July 1964. It was premiered by the Beethoven Quartet in Moscow and is dedicated to composer Mieczysław (Moisei) Weinberg, a close friend of Shostakovich. It has been described as cultivating the uncertain mood of his earlier Stalin-era quartets, as well as foreshadowing the austerity and emotional distance of his later works. The quartet typified the preference for chamber music over large scale works, such as symphonies, that characterised his late period. According to the American musicologist Richard Taruskin, this made him the first Russian composer to devote so much time to the string quartet medium.