This dissertation is in two parts: a detailed examination of the life, working processes, and cultural influences of Teiji Ito, and the analysis of a live film soundtrack performance project aiming to recreate these works on-stage together with 16mm film projection. The information in this dissertation was drawn from, among other sources, an extensive series of interviews with Teiji Ito’s surviving friends and family, and careful examination of the Teiji Ito Archives, which are housed at the New York Public Library.