Question: Who is the composer of Rhapsody No. 1, named after the county where the village of Testerton is found?

full_context: Document 1: Great Village: Great Village is a rural community of approximately 500 people located along Trunk 2 and the north shore of Cobequid Bay in Colchester County, Nova Scotia. It is considered locally to incorporate the areas of Highland Village to the west and Scrabble Hill to the north northwest.
Document 2: Municipality of Norfolk Treherne: The Municipality of Norfolk Treherne is a rural municipality (RM) in the Canadian province of Manitoba that incorporated on January 1, 2015 via the amalgamation of the RM of South Norfolk and the Town of Treherne. It was formed as a requirement of "The Municipal Amalgamations Act", which required that municipalities with a population less than 1,000 amalgamate with one or more neighbouring municipalities by 2015. The Government of Manitoba initiated these amalgamations in order for municipalities to meet the 1997 minimum population requirement of 1,000 to incorporate a municipality.
Document 3: Testerton: Testerton is a small village in the English county of Norfolk. It is located between the village of Great Ryburgh and the market town of Fakenham. Any remaining population is included in the civil parish of Pudding Norton.
Document 4: A Nightingale Sang in Berkeley Square: The song was written in the then small French fishing village of Le Lavandou -- now a favourite resort for British holidaymakers and second - home owners -- shortly before the outbreak of the Second World War. According to Maschwitz, the title was ``stolen ''from a story by Michael Arlen. The song had its first performance in the summer of 1939 in a local bar, where the melody was played on piano by Manning Sherwin with the help of the resident saxophonist. Maschwitz sang the words while holding a glass of wine, but nobody seemed impressed. In the spring of 2002, an attempt was made to find the bar where this song was first performed: it was hoped that a blue plaque could be set up. With the help of the local tourist office, elderly residents were questioned, but it proved impossible to identify the venue.
Document 5: Symphony No. 6 (Vaughan Williams): Ralph Vaughan Williams's Symphony in E minor, published as Symphony No. 6, was composed in 1944–47, during and immediately after World War II and revised in 1950. Dedicated to Michael Mullinar, it was first performed, in its original version, by Sir Adrian Boult and the BBC Symphony Orchestra on 21 April 1948. Within a year it had received some 100 performances, including the U.S. premiere by the Boston Symphony Orchestra under Serge Koussevitzky on 7 August 1948. Leopold Stokowski gave the first New York performances the following January with the New York Philharmonic and immediately recorded it, declaring that "this is music that will take its place with the greatest creations of the masters." However, Vaughan Williams, very nervous about this symphony, threatened several times to tear up the draft. At the same time, his programme note for the first performance took a defiantly flippant tone.
Document 6: Come Thou Fount of Every Blessing: In the United States, the hymn is usually set to an American folk tune known as "Nettleton", composed by printer John Wyeth, or possibly by Asahel Nettleton. In the United Kingdom, the hymn is also often set to the tune "Normandy" by C Bost. The "Nettleton" tune is used extensively in partial or full quotation by the American composer Charles Ives, in such works as the First String Quartet and the piano quintet and song "The Innate". The "Nettleton" tune is also quoted at the end of "My Trundle Bed" by Tullius C. O'Kane. A shape note song called "Warrenton" also has been sung with a chorus being in 4/4 time or 2/2 cut time; to fit the text to this melody, the second half of each verse is omitted and replaced with a refrain of "I am bound for the kingdom, will you come to glory with me? / Hallelujah, praise the Lord!"
Document 7: Amadeo Roldán: Roldán's compositions included "Overture on Cuban Themes" (1925), three little poems: ("Oriente", "Pregón", "Fiesta negra": 1926), and two ballets: "La Rebambaramba" (a ballet colonial in two parts: 1928) and "El milagro de Anaquille" (1929). There followed a series of "Rítmicas" (1930), "Poema negra" (1930) and "Tres toques" (march, rites, dance) (1931). The fifth and sixth of his "Rítmicas", composed around the same time as Edgard Varèse's "Ionisation", were among the first works in the Western classical music tradition scored for percussion ensemble alone. In "Motivos de son" (1934) he wrote eight pieces for voice and instruments based on the poet Nicolas Guillen's set of poems with the same title. His last composition was two "Piezas infantiles" for piano (1937). His work was regularly featured in concerts sponsored by the Pan-American Association of Composers, founded by Henry Cowell, including the inaugural, March 1929 performance in New York.
Document 8: Ralph Cupper: After he concluded his studies at ‘The Hewett School’ in Norwich, Ralph Cupper studied at the Royal Academy of Music in London. While he was there he studied the Organ with Douglas Hawkridge; Choir/Orchestra Direction with Dr. Douglas Hopkins; Harmony, Counterpoint and fuge with Drs. Arthur Pritchard and Arthur Wills. After he finished in 1976 he did an extended course of Organ studies with Susi Jeans and Nicholas Kynaston with the help of a Stipend from ‘The Alderman Norman Foundation’. In 1979 Ralph Cupper was awarded a Stipend from ‘The Arts Council of Great Britain to study the organ with the well known Dutch Organist Bernard Bartelinck, who was at that time Organist at the Bavo Cathedral in Haarlem in the Netherlands.
Document 9: Lancashire: Lancashire has a long and highly productive tradition of music making. In the early modern era the county shared in the national tradition of balladry, including perhaps the finest border ballad, "The Ballad of Chevy Chase", thought to have been composed by the Lancashire-born minstrel Richard Sheale. The county was also a common location for folk songs, including "The Lancashire Miller", "Warrington Ale" and "The soldier's farewell to Manchester", while Liverpool, as a major seaport, was the subject of many sea shanties, including "The Leaving of Liverpool" and "Maggie May", beside several local Wassailing songs. In the Industrial Revolution changing social and economic patterns helped create new traditions and styles of folk song, often linked to migration and patterns of work. These included processional dances, often associated with rushbearing or the Wakes Week festivities, and types of step dance, most famously clog dancing.
Document 10: Clippesby: Clippesby is a small village in Eastern England within the Great Yarmouth Borough Council area, Norfolk; located on the B1152 and surrounded by the Norfolk Broads. The village consists largely of a few rows of small cottages and houses with four buildings of historical relevance, the Church of St. Peter's, the Rectory, the Old Hall (now Old Hall Farm) and Clippesby Hall (formerly Clippesby House). It is surrounded by outlying farmsteads. Farming and tourism comprise the majority of its economy, the latter being based in the grounds of Clippesby Hall. The population of the village is included in the civil parish of Fleggburgh.
Document 11: Rhapsody (Ashton): Rhapsody is a one act ballet by Sir Frederick Ashton, based on Sergei Rachmaninoff's "Rhapsody on a Theme of Paganini". The ballet premiered on 4 August 1980 at The Royal Ballet, and was dedicated to Queen Elizabeth The Queen Mother. It has been revived three times since its 1980 premiere, in 1995, 2011, and most recently, 2016.
Document 12: Earsham: Earsham is a small village in Norfolk, England. Its postal town is the nearby Bungay, Suffolk. It covers an area of and had a population of 907 in 357 households at the 2001 census, the population falling to 882 at the 2011 census.
Document 13: Stratton Strawless: Stratton Strawless is a village in the county of Norfolk and district of Broadland. The civil parish covers and has a population of 495, increasing to a population of 580 in the 2011 Census. Located close and to the east of the A140 road and being south of the market town of Aylsham and some north of Norwich. Much of the parish has been given over to the growing of arable crops, but there are substantial amounts of mixed woodland to be found.
Document 14: Emneth: Emneth is a village and a civil parish in the English county of Norfolk. The village is west of Norwich, south-west of King's Lynn and north of London. The nearest town is Wisbech which is north-north-west of the village. The Village lies to the south-west of the route of the A47 between Peterborough and King's Lynn. The nearest railway station is at Downham Market for the Fen Line which runs between King's Lynn and Cambridge. The nearest airport is Cambridge International Airport. The parish of Emneth in the 2001 census, has a population of 2,466, increasing to 2,617 at the 2011 Census. For the purposes of local government, the parish falls within the district of King's Lynn and West Norfolk.
Document 15: Norfolk Rhapsodies: The Norfolk Rhapsodies are three orchestral rhapsodies by Ralph Vaughan Williams, drafted in 1905–06. They were based on folk songs Vaughan Williams had collected in the English county of Norfolk, in particular the fishing port of King's Lynn in January 1905. Only the first rhapsody survives in its entirety, having been revised by the composer in 1914. The second exists in fragmentary form, and has been completed by other hands. The third is lost.
ground_truth: Ralph Vaughan Williams
sub_queries: Testerton >> located in the administrative territorial entity Answer: Norfolk
Norfolk Rhapsody No. 1 >> composer Answer: Ralph Vaughan Williams