"Sinfonia per 8 voci e orchestra" was composed by Luciano Berio in 1968.
This premiere in Germany with the Southwest German Radio Symphony Orchestra
was conducted by Ernest Bour.
This piece is symptomatic from the 60s as it includes different musical quotations from Malher, Schönberg, Stravinsky, Hindemith, Debussy, Ravel, Berlioz...
It uses texts issued from Claude Lévy Strauss ("Le cru et le cuit") and Samuel Beckett ("L'innommable") sung by 8 amplified voices.
details of the piece on IRCAM website (in french)