Question: Peter Coleman-Wright played Demetrius in which opera whose music was by Benjamin Britten?  

Context paragraphs:
Winter Words (song cycle): Winter Words, Op.  52, is a song cycle for tenor and piano by Benjamin Britten.  Written in 1953, it sets eight poems by Thomas Hardy.  "Winter Words" is one of Britten's few compositions from the period after the premiere of his opera "Gloriana"; its poems are from Hardy's last published collection, having the same title.  The cycle was premiered at the Leeds Festival in October 1953, with Peter Pears singing and Britten at the piano.  It was dedicated to John and Myfanwy Piper.

Benjamin Britten: A Life in the Twentieth Century: Benjamin Britten: A Life in the Twentieth Century is a book by the Australian author and composer Paul Kildea first published in January 2013 to mark the centenary year of British composer Benjamin Britten.  The book was featured on BBC Radio 4's "Book of the Week" in February 2013.

Benjamin Britten: Edward Benjamin Britten, Baron Britten {'1': ", '2': ", '3': ", '4': "} (22 November 1913 – 4 December 1976) was an English composer, conductor and pianist.  He was a central figure of 20th-century British classical music, with a range of works including opera, other vocal music, orchestral and chamber pieces.  His best-known works include the opera "Peter Grimes" (1945), the "War Requiem" (1962) and the orchestral showpiece "The Young Person's Guide to the Orchestra" (1945).

Britten's Children: Britten's Children is a scholarly 2006 book by John Bridcut that describes the English composer Benjamin Britten's relationship with several adolescent boys.  Bridcut has been praised for treating such a sensitive subject in "an impeccably unsensational tone".  The Britten-Pears Foundation described the book as having been "enthusiastically received as shedding new light on one of the most interesting aspects of Britten's life and career, in a study that is thoroughly researched, wonderfully readable and thought-provoking".  Bridcut's book followed his television documentary "Britten's Children" shown on BBC2 in June 2004.

Curlew River: Curlew River – A Parable for Church Performance (Op. 71) is an English music drama with music by Benjamin Britten to a libretto by William Plomer.  The first of Britten's three 'Parables for Church Performance', the work is based on the Japanese "noh" play "Sumidagawa" (Sumida River) of Juro Motomasa] (1395–1431), which Britten saw during a visit to Japan and the Far East in early 1956.  Beyond the "noh" source dramatic material, Britten incorporated elements of "noh" treatment of theatrical time into this composition.  "Curlew River" marked a departure in style for the remainder of the composer's creative life, paving the way for such works as "Owen Wingrave", "Death in Venice", and the Third String Quartet.

Peter Grimes: Peter Grimes is an opera by Benjamin Britten, with a libretto adapted by Montagu Slater from the narrative poem, "Peter Grimes," in George Crabbe's book "The Borough".  The "borough" of the opera is a fictional village which shares some similarities with Crabbe's, and later Britten's, own home of Aldeburgh, a town on England's east coast.

Neil Mackie: Neil Mackie (born 1946) is a Scottish tenor.  During his career as a singer, he was associated with the works of 20th-century composers, particularly Benjamin Britten, and Peter Maxwell Davies.  He created the title role in Davies's opera "The Martyrdom of St Magnus" and Sandy in his "The Lighthouse" and performed in the world premieres of Davies's "Into the Labyrinth", cantata for tenor and chamber orchestra, and "The Jacobite Rising".  He has also premiered vocal works by Elliott Carter ("In Sleep, in Thunder"), Hans Werner Henze ("Three Auden Songs") and songs by Benjamin Britten.

Peter Coleman-Wright: Peter Coleman-Wright {'1': ", '2': ", '3': ", '4': "} (born 13 October 1958) is an Australian baritone from Geelong.  He began his career at Glyndebourne Festival Opera, where he sang Guglielmo in "Così fan tutte", winning the Touring Prize.  Subsequently, he sang Sid in "Albert Herring" and Demetrius in "A Midsummer Night's Dream" and Pizzaro in "Fidelio".

Hymn to St Cecilia: Hymn to St Cecilia, Op.  27 is a choral piece by Benjamin Britten (1913–1976), a setting of a poem by W. H. Auden written between 1940 and 1942.  Auden's original title was "Three Songs for St. Cecilia's Day", and he later published the poem as "Anthem for St. Cecilia’s Day (for Benjamin Britten)".

A Midsummer Night's Dream (opera): A Midsummer Night's Dream, Op.  64, is an opera with music by Benjamin Britten and set to a libretto adapted by the composer and Peter Pears from William Shakespeare's play, "A Midsummer Night's Dream".  It was premiered on 11 June 1960 at the Aldeburgh Festival, conducted by the composer and with set and costume designs by Carl Toms.  Stylistically, the work is typical of Britten, with a highly individual sound-world – not strikingly dissonant or atonal, but replete with subtly atmospheric harmonies and tone painting.  The role of Oberon was composed for the countertenor Alfred Deller.  Atypically for Britten, the opera did not include a leading role for his partner Pears, who instead was given the comic drag role of Flute/Thisbe.

Supporting paragraphs: Peter Coleman-Wright A Midsummer Night's Dream (opera)
Answer: A Midsummer Night's Dream