Symphonie pour un homme seul (Symphony for One Man Alone) is
a musical composition by Pierre Schaeffer and Pierre Henry, composed in
1949–1950. It is an important early example of musique concrète.
The Symphonie was premiered at a concert on 18 March 1950.
Comprising twenty-two movements of music produced using turntables and
mixers, it was difficult to perform due to technical problems.The number
of movements was reduced to 11 for a broadcast in 1951, and then to 12 for the
revised 1966 version by Henry.
