Adept at writing both instrumental and vocal music, Barber's works became successful on the international stage and many of his compositions enjoyed rapid adoption into the classical performance canon. In particular, his "Adagio for Strings" (1936) has earned a permanent place in the concert repertory of orchestras, as has that work's adaptation for chorus, "Agnus Dei" (1967). He was awarded the Pulitzer Prize for Music twice: for his opera "Vanessa" (1956–57) and for the "Concerto for Piano and Orchestra" (1962). Also widely performed is his "" (1947), a setting for soprano and orchestra of a prose text by James Agee. At the time of Barber's death, nearly all of his compositions had been recorded. Many of his compositions were commissioned or first performed by such noted organizations and artists as the Boston Symphony Orchestra, the Philadelphia Orchestra, the New York Philharmonic, the Metropolitan Opera, Vladimir Horowitz, Eleanor Steber, Raya Garbousova, John Browning, Leontyne Price, Pierre Bernac, Francis Poulenc, and Dietrich Fischer-Dieskau.