The Sydmonton Festival is a summer arts festival presented in a deconsecrated 16th century chapel on the grounds of Sydmonton Court, the country estate of Andrew Lloyd Webber.
 It is in Hampshire, located approximately 85 kilometres southwest of London, and was established in September 1975.
 Its purpose is to introduce new works to a private audience of individuals connected with theatre, television, and film in order to determine their future potential and viable commercialism.
A music festival is a festival oriented towards music that is sometimes presented with a theme such as musical genre, nationality, or locality of musicians, or holiday.
 They are commonly held outdoors, and are often inclusive of other attractions such as food and merchandise vending, performance art, and social activities.
 Many festivals are annual, or repeat at some other interval.
 Some, including many rock festivals, are held only once.
 Some festivals are organized as for-profit concerts and others are benefits for a specific cause.
 Another type of music festival is the educative type, organized annually in local communities, regionally, or nationally, for the benefit of amateur musicians of all ages and grades of achievement.
Rebel Salute is an annual music festival held in Jamaica.
 It is held on January 15 of every year, the birthday of promoter Tony Rebel.
 It is one of Jamaica's biggest music festivals, known for its focus on roots and conscious music.
 Rebel began the festival in 1994 in the parish of Mandeville and was long held annually in St. Elizabeth on the country's south coast until 2012.
 As of 2014, the festival is now a two-day event, held in the Richmond Park Estate in Saint Ann Parish.
Oireachtas na Gaeilge (] ) is an annually held arts festival of Irish culture, which has run since the 1890s.
 Based on the Welsh Eisteddfod, Oireachtas na Gaeilge runs for one week, featuring performances, demonstrations and competitions.
 The festival is held in two portions: a visual arts festival in April/May and the festival proper on the last weekend of October or the first of November, when more than 10,000 people attend the seven-day event.
 In 2007, the festival was held at Westport.
 The 2008 festival took place in the Cork city suburb of Douglas, the local support committee was under the chairmanship of Peadar Ó Riada, son of the composer and founder of the male choir Cór Chúil Aodha, Seán Ó Riada.
Andrew Lloyd Webber, Baron Lloyd-Webber (born 22 March 1948) is an English composer and impresario of musical theatre.
 Several of his musicals have run for more than a decade both in the West End and on Broadway.
 He has composed 13 musicals, a song cycle, a set of variations, two film scores, and a Latin Requiem Mass.
 Several of his songs have been widely recorded and were hits outside of their parent musicals, notably "The Music of the Night" from "The Phantom of the Opera", "I Don't Know How to Love Him" from "Jesus Christ Superstar", "Don't Cry for Me, Argentina" and "You Must Love Me" from "Evita", "Any Dream Will Do" from "Joseph and the Amazing Technicolor Dreamcoat" and "Memory" from "Cats".
 In 2001 the "New York Times" referred to him as "the most commercially successful composer in history".
 Ranked the "fifth most powerful person in British culture" by "The Telegraph" in 2008, the lyricist Don Black stated "Andrew more or less single-handedly reinvented the musical."
The Belladrum Tartan Heart Festival is a music and arts festival, held on the Belladrum Estate near Inverness, in Scotland.
 It is normally held at the start of August.
 Founded in 2004, the festival has rapidly grown in popularity.
 The festival has sold out in advance every year since 2008.
Colm Wilkinson (born 5 June 1944), also known as C. T. Wilkinson, is an Irish-Canadian tenor and actor, best known for originating the role of Jean Valjean in ""Les Misérables"" (in the West End and Broadway) and for taking the title role in "The Phantom of the Opera" at the Sydmonton Festival and in the original Canadian production.
The Clifford Brown Jazz Festival is a free jazz music festival held annually in June at Rodney Square in Wilmington, Delaware, USA.
 The first festival was held in 1989 on the open lawn in the center of the city, and has grown into the largest free jazz festival on the East Coast.
 The event is held to keep alive the memory of Clifford Brown who died in a traffic accident in 1956 along with pianist Richie Powell.
 Pieces written by Brown and tribute pieces (like Benny Golson's "I Remember Clifford") are often played.
 Some acts have been staged at the Winterthur Museum and Country Estate, where a fee was charged.
Bestival is a four-day music festival held in the south of England.
 It has been held annually in late summer since 2004 at Robin Hill on the Isle of Wight.
 In 2017 the festival relocated to the Lulworth Estate in Dorset.
 The event is organized by DJ and record producer Rob da Bank along with his wife Josie and is an offshoot of his Sunday Best record label and club nights.
 The initial Bestival attracted 10,000 people, growing to 55,000 in 2010.
 Bestival won 'Best Major Festival' at the 2015 UK Festival Awards, having won 'Best Medium-Sized Festival' in 2005, 2006, 2007 and 2009, 'Best Major Festival' in 2010, 2012 and in 2015, 'Fan's Favourite' in 2011 and 'Best Innovation' in 2005.
Glade Festival was an electronic dance music festival, founded by Nick Ladd and Ans Guise, which originally started out as Glastonbury Festival's Glade Stage, which was established by Luke Piper and Mark Parsons who also became founding partners in Glade Festival itself.
 Exeter breakbeat promoter Biff Mitchell also played an important role in the event's development.
 The annual festival took place for the first time over four days in the summer of 2004, attracting 22,500 people by 2007.
 The festival's home for the first five years was the Wasing Estate, in Berkshire.
 In 2009 it was held in Winchester, and in 2011 and 2012 its location was at Houghton Hall in Norfolk.
 The festival was cancelled in 2013, it did not reappear as was planned in 2014, however the Glade Stage at the main Glastonbury festival continues.

Question: The Sydmonton Festival is held at the estate of the composer who is of what nationality?
Answer: English