Sonic Overload offers a new, music-centered cultural history of the late Soviet Union. It focuses on polystylism in music as a response to the information overload swamping listeners in the Soviet Union during its final decades. It traces the ways in which leading composers Alfred Schnittke and Valentin Silvestrov initially embraced popular sources before ultimately rejecting them. Polystylism first responded to the utopian impulses of Soviet ideology with utopian impulses to encompass all musical styles, from "high" to "low". But these initial all-embracing aspirations were soon followed by retreats to alternate utopias founded on carefully selecting satisfactory borrowings, as familiar hierarchies of culture, taste, and class reasserted themselves. Looking at polystylism in the late USSR tells us about past and present, near and far, as it probes the musical roots of the overloaded, distracted present.