Association for Contemporary Music (ACM) (Russian: ACM - Ассоциация Современной Музыки, ASM - Assotsiatsiya Sovremennoy Muzyki) was an alternative organization of Russian composers interested in avant-garde music. It was founded by Nikolai Roslavets in 1923. ACM ran concert series and published magazines promoting the modernist music of Mahler, Schoenberg, Berg, Webern, Krenek, and Hindemith, as well as the work of its members. Its leading members were Dmitri Shostakovich, Nikolai Myaskovsky, Vissarion Shebalin, Alexander Mosolov, Gavriil Popov, and Vladimir Shcherbachev. The organization's enthusiasm for avant-garde Western music and for experimentation met with opposition from the Russian Association of Proletarian Musicians (RAPM), which by the late 1920s had eclipsed the ACM in terms o