Consists of previously released material.
This recording was mastered using 20-bit technology for "high definition sound".
A Symphony Of Three Orchestra (première 17/02/1977 Avery Fisher Hall, Boulez), recorded Febuary 22, 1977 at Avery Fisher Hall, New York City
Déserts (1954) recorded November 15, 1979 at IRCAM, Paris
Ecuatorial (1934) recorded October 3, 1983 at IRCAM, Paris
Hyperprism (première March 4 1923) recorded April 8, 1983 at IRCAM, Paris