A pioneering force behind the evolution of minimalism, violinist and composer Tony Conrad introduced the idea of "Eternal Music," a droning, mesmerizing performance idiom that employed long durations, amplification, and precise pitch to explore new worlds of sound. With both his solo work and through collaborations with artists including LaMonte Young, John Cale, and Faust, he forged new creative directions that proved enormously influential on successive generations of artists ranging in background from pop to the avant-garde. Born in Baltimore in 1940, Conrad studied music a...