Tippett’s operas include "A Midsummer Marriage" (started 1946, first performed 1955), "King Priam" (1958-61), "The Knot Garden" (1966-69) and "The Ice Break" (1973-76) and "New Year" (1989). He wrote several choral works. His orchestral works include 4 symphonies, a "Fantasia concertante on a Theme of Corelli" for strings (1953), a "Piano Concerto" (1953-55) and a "Concerto for violin, viola and cello" (1979). His chamber music includes piano sonatas and string quartets.