The War Requiem, Op. 66 is a large-scale, non-liturgical setting of the Requiem Mass composed by Benjamin Britten mostly in 1961 and completed January 1962. Interspersed with the traditional Latin texts are pasted, collage-like, settings of Wilfred Owen poems. The work is scored for soprano, tenor and baritone soloists, chorus, boys' choir, organ, and two orchestras (a full orchestra and a chamber orchestra). It has a duration of approximately 85 minutes. Wikipedia notes
Edward Benjamin Britten, Baron Britten of Aldeburgh, OM CH (22 November 1913 – 4 December 1976) was an English composer, conductor, and pianist. Showing prodigious talent from an early age – he composed his Quatre Chansons françaises for soprano and orchestra at the age of fourteen – he first came to public attention with the a cappella choral work A Boy Was Born. With the premiere of his opera Peter Grimes in 1945 he leapt to international fame, and for the next fifteen years he devoted much of his compositional attention to writing operas, several of which now appear regularly on international stages. Britten's interests as a composer were wide-ranging; he produced important music in such varied genres as orchestral, choral, solo vocal (much of it written for the tenor Peter Pears), chamber and instrumental, as well as film music. He also took a great interest in writing music for children and amateur performers, and was considered a fine pianist and conductor.
Entire Wikipedia Bio