Question: Knoxville: Summer of 1915 is a work for voice and orchestra by what American composer of orchestral, opera, choral, and piano music, who is one of the most celebrated composers of the 20th century?
Sentence (from "Knoxville: Summer of 1915"): 24, is a 1947 work for voice and orchestra by Samuel Barber, with text from a 1938 short prose piece by James Agee.
Relevant evidence: Yes