Question: Cloudburst is a famous composition by what American composer?
Context: Johannes Hanssen (2 December 1874 in Ullensaker – 25 November 1967 in Oslo) was a Norwegian bandmaster, composer and teacher.  He was bandmaster of the Oslo Military Band from 1926 to 1934 and again from 1945 to 1946.  Hanssen received the King's Order of Merit in Gold and King Haakon VII's Jubilee Medal.  His most famous composition is his "Valdresmarsjen" (1904), a march celebrating the beautiful Valdres region in Norway that lies between Oslo and Bergen.  The main theme is the signature fanfare for the Valdres Battalion, which is based on an ancient melody formerly played on the medieval "lur", an uncoiled wooden wind instrument.  The melody of the trio section derives from a fiddle tune traditional in Hardanger and a pentatonic folk tune, above a typical Norwegian drone bass line.  It was first performed in 1904 by the band of the second regiment of Norway, with the composer playing the baritone horn himself.  Numerous settings for brass band exist in addition to various arrangements for concert band. Eric Edward Whitacre (born January2, 1970) is a Grammy-winning American composer, conductor, and speaker, known for his choral, orchestral and wind ensemble music.  He is also known for his "Virtual Choir" projects, bringing individual voices from around the globe together into an online choir.  In March2016, he was appointed as Los Angeles Master Chorale's first artist-in-residence at the Walt Disney Concert Hall. Cloudburst is one of Eric Whitacre's most famous compositions.  Whitacre wrote the piece in 1992 (age 22) for eight-part choir, with piano and percussion accompaniment.  The text was adapted from Octavio Paz's poem "El Cántaro Roto" (The Broken Water-Jug). Clarence "Mac" McDonald is a Los Angeles-based pianist, composer, arranger, and producer.  McDonald is known for his musical diversity, enduring melodies and signature groove.  His most famous composition is "Silly" sung by Deniece Williams in 1981 and Taral Hicks in 1997.  In 2010 the song instrumental intro and bridge were sampled in Monica's seven weeklong Billboard #1 RB Grammy nominated song "Everything To Me".  He has worked with a long list of entertainment icons including Ray Charles, Barbra Streisand, Ella Fitzgerald, Justin Timberlake, Aretha Franklin, James Taylor, Carole King, Taral Hicks, Freddy Hubbard, Nancy Wilson, Boz Scaggs, Seals & Crofts, Bill Withers, and The Jackson 5. William Hargreaves (1880–1941) was an English composer, mainly of songs for the music hall.  His most famous composition was "Burlington Bertie From Bow" in 1916 but he also wrote "Delaney's Donkey", "I Know Where the Flies Go", "PC 49", "We All Went Marching Home Again", "They Built Piccadilly For Me" and "Give My Regards to Leicester Square". William Kroll (30 January 1901 – 10 March 1980) was an American violinist and composer.  His most famous composition is "Banjo and Fiddle" for violin and piano. Eduard Wagnes (18 March 1863 in Graz, Austria – 27 March 1936 in Bad Gams, Austria) was a conductor in the Austro-Hungarian Military, and composer of military marches.  His most famous composition was "Die Bosniaken Kommen", composed in 1895. Wenceslao "Ben" Zubiri (September 28, 1911 – November 9, 1969), who was also known as Iyo Karpo was a Cebuano composer, actor, and media personality in the Philippines.  His most famous composition, for which he wrote both the lyrics and music, is the song "Matud Nila" (in English "They Say"). Timon of Phlius ( ; Greek: Τίμων ὁ Φλιάσιος , "gen". : Τίμωνος; c. 320 BC – c. 230 BC) was a Greek Pyrrhonist philosopher, a pupil of Pyrrho, and a celebrated writer of satirical poems called "Silloi" (Greek: Σίλλοι ).  He was born in Phlius, moved to Megara, and then he returned home and married.  He next went to Elis with his wife, and heard Pyrrho, whose tenets he adopted.  He also lived on the Hellespont, and taught at Chalcedon, before moving to Athens, where he lived until his death.  His writings were said to have been very numerous.  He composed poetry, tragedies, satiric dramas, and comedies, of which very little remains.  His most famous composition was his "Silloi", a satirical account of famous philosophers, living and dead, in hexameter verse.  The "Silloi" has not survived intact, but it is mentioned and quoted by several ancient authors. Fanny Rose Howie (11 January 1868–20 May 1916) was a New Zealand singer and composer.  Of Māori descent, she identified with the Ngati Porou and Te Whanau-a-Apanui iwi.  She was born in Tokomaru Bay, East Coast, New Zealand on 11 January 1868, the daughter of Thomas William Porter and Herewaka Porourangi Potae. " Hine E Hine" is her most famous composition.
Answer: Eric Whitacre