Before writing musicals, Schonberg was an artistic director at EMI; he was producing artists such as Gilbert Bécaud, Franck Pourcel, Regine. In 1973, he composed the music for "La Revolution Francaise", and acted as "King Louis XVI" in the production. Franck Pourcel decided to produce in first LP in 1974: "Le Premier Pas" (one of the famous French songs of the century). Schonberg was married twice; first with Beatrice Schonberg, from which he has 2 children, and, the second time, he married an English ballerina, Charlotte Talbot: he has a baby girl. He lives in France with his family.