As much a composer as a performer, Barre works in the areas of film, ballet and theater. He has written music for numerous feature films – Robert Kramer, Jacques Rivette, William Friedkin, Marcel Camus… scores for ballet for Carolyn Carlson and the Paris Opera… At the same time he has continue his experiences in the jazz and contemporary improvised music scene. Barre has recorded over 175 records, 30 under his own name. His experience spans a wide range of musical styles, from Coleman Hawkins to Derek Bailey. His work in the 70‘s with John Surman and Stu Martin, „The Trio“, became a model in itself, and influenced many younger musicians.

He is constant demand throughout Europe, North America and Japan as a soloist and teacher. Besides many other musicians he has collaborated togehter with: Archie Shepp, Chick Corea, George Russel, Lee Konitz, Ralph Towner, Charlie Mariano, Michel Portal, Albert Mangelsdorf, Anthony Braxton, Jimmy Guiffre, Paul Bley, Evan Parker, Ornette Coleman, Leonard Bernstein Terje Rypdal, Benny Golson, Pierre Favre, Cecil Taylor, Barry Guy.