ABSTRACT During the heat of the fraught political climate of 1969, the editors of SOURCE: Music of the Avant Garde invited 20 innovative composers and musicians to respond to a single question: “Have you, or has anyone, ever used your work for political or social ends?” Forty-five years later the author posed the same question to 20 unconventional composers working today, resulting in a provocative contemporary update to the original 1969 SOURCE article.