Antonín Dvořák's Symphonic Variations on the Theme “I am a fiddler” (Czech: Symfonické variace z písně „Já jsem huslař“ ) for orchestra, Op. 78, B. 70, were written in 1877.
 They are played fairly commonly, much like Johannes Brahms's "Variations on a Theme by Haydn" and Edward Elgar's "Enigma Variations".
 They are often recorded in conjunction with his nine symphonies.
The Enigma Variations is a compilation album of newer artists (in 1985) that were on Enigma Records or one of its subsidiaries.
 It was originally released as a double LP and cassette, but was then subsequently also released as a CD with a reduced number of tracks.
 The album was compiled by Steve Pross and William Hein.
 The Greek pressing of the album (on Virgin Records) was issued as a single LP.
Edward Elgar's Enigma Variations has received more than sixty recordings since the first version, recorded under the baton of the composer in 1924.
 The first two recordings were made by the old acoustic process.
 Following the introduction of the microphone and electrical recording in 1925, Elgar re-recorded the work, taking advantage of the greatly increased realism of the new process.
 New recordings of the Variations were later made following the introduction of the long playing record in the early 1950s, and after the introduction of stereophonic recording towards the end of the decade.
 Details of the recordings, below, are taken from "The Gramophone"
Pageant of Empire is the title given to a set of songs, to words by Alfred Noyes, written by the English composer Sir Edward Elgar and given important positions in the Pageant of Empire at the British Empire Exhibition at Wembley Park.
Sir Edward William Elgar, 1st Baronet (2 June 1857 – 23 February 1934) was an English composer, many of whose works have entered the British and international classical concert repertoire.
 Among his best-known compositions are orchestral works including the "Enigma Variations", the "Pomp and Circumstance Marches", concertos for violin and cello, and two symphonies.
 He also composed choral works, including "The Dream of Gerontius", chamber music and songs.
 He was appointed Master of the King's Musick in 1924.
Futureperfect is the fourth studio album by futurepop band VNV Nation.
 It was released in Europe on January 28, 2002 and on March 5, 2002 in the United States.
 It was the first VNV Nation release to be created/produced entirely using software synthesizers.
 The opening track 'Foreword' samples the Enigma Variations, part IX (Nimrod).
"The Globalist" is a song by English rock band Muse, and the eleventh track from the band's seventh studio album "Drones".
 An apocalyptic song, it serves as a sequel to "Citizen Erased".
 Part of this song contains music based on "Nimrod" from "Enigma Variations", composed by Edward Elgar.
 The song follows "Aftermath", which centers on the album's protagonist discovering love.
 Matt Bellamy has said that the album's negative stories, "The Globalist" and "Drones", serve as epilogue.
 At ten minutes and seven seconds, it is the second longest song in Muse's discography, after "".
Julius Buths (7 May 185112 March 1920) was a German pianist, conductor and minor composer.
 He was particularly notable in his early championing of the works of Edward Elgar in Germany.
 He conducted the continental European premieres of both the "Enigma Variations" and "The Dream of Gerontius".
 He also had notable associations with Frederick Delius and Gustav Mahler.
Edward Elgar composed his Variations on an Original Theme, Op.
 36, popularly known as the Enigma Variations, between October 1898 and February 1899.
 It is an orchestral work comprising fourteen variations on an original theme.
Enigma Variations (My Friends Pictured Within) is a one-act ballet by Frederick Ashton, to the music of the Variations on an Original Theme for orchestra ("Enigma"), Op. 36 by Edward Elgar.
 The work was first given by the Royal Ballet at the Royal Opera House, Covent Garden, London on 25 October 1968.
 It has been revived in every subsequent decade.

Question: What composer wrote the Pageant of Empire and Enigma Variations?
Answer: Edward Elgar