 After Joseph Stalin had succeeded in expelling Leon Trotsky from the Central Committee in 1927, he very soon cut off connections with the West and established an isolationist state.Stalin rejected Western and its ‘bourgeois principles,’ as these did not agree with the values of the Soviet Communist Party or the working class.The Association of Contemporary Musicians (ACM), a faction of more progressive Soviet musicians, who had thrived from exposure to the West during the NEP years, quickly dissolved without the support of the worker’s state.