Question: In the Hall of the Mountain King is a piece by a composer of what nationality?

full_context: Document 1: John Grieg: John Grieg (18 August 1856 – 21 April 1905) was a Norwegian printer, publisher and bookseller.
Document 2: Kongesangen: Kongesangen ("King's Song") is Norway's royal anthem. The lyrics come in several versions. The first version ("Gud signe kongen vor") was written by Henrik Wergeland, but the version used today and quoted below was written by Gustav Jensen for the coronation of Haakon VII and Maud of Wales in 1906. It was inspired by the British royal and national anthem, and set to the tune of "God Save the Queen".
Document 3: Jean Sibelius: Jean Sibelius ( ;    ), born Johan Julius Christian Sibelius (8 December 186520 September 1957), was a Finnish composer and violinist of the late Romantic and early-modern periods. He is widely recognized as his country's greatest composer and, through his music, is often credited with having helped Finland to develop a national identity during its struggle for independence from Russia.
Document 4: Antonín Dvořák: Antonín Leopold Dvořák ( ; ] ; 8 September 1841 – 1 May 1904) was a Czech composer. After Bedřich Smetana, he was the second Czech composer to achieve worldwide recognition. Following Smetana's nationalist example, Dvořák frequently employed aspects, specifically rhythms, of the folk music of Moravia and his native Bohemia. Dvořák's own style has been described as "the fullest recreation of a national idiom with that of the symphonic tradition, absorbing folk influences and finding effective ways of using them."
Document 5: Bedřich Smetana: Bedřich Smetana (] ; 2 March 1824 – 12 May 1884) was a Czech composer who pioneered the development of a musical style which became closely identified with his country's aspirations to independent statehood. He is thus widely regarded in his homeland as the father of Czech music. Internationally he is best known for his opera "The Bartered Bride" and for the symphonic cycle "Má vlast" ("My Homeland"), which portrays the history, legends and landscape of the composer's native land.
Document 6: In the Hall of the Mountain King: "In the Hall of the Mountain King" (Norwegian: "I Dovregubbens hall" ) is a piece of orchestral music composed by Edvard Grieg in 1875 as incidental music for the sixth scene of act 2 in Henrik Ibsen's 1867 play "Peer Gynt". It was originally part of Opus 23 but was later extracted as the final piece of "Peer Gynt", Suite No. 1, Op. 46. Its easily recognizable theme has helped it attain iconic status in popular culture, where it has been arranged by many artists (See Grieg's music in popular culture).
Document 7: Hall of the Mountain King: In the Hall of the Mountain King is a 1867 orchestral piece composed by Edvard Grieg.
Document 8: Hall of the Mountain King (album): Hall of the Mountain King is the fourth studio album by American heavy metal band Savatage, released in 1987 under the direction of producer Paul O'Neill. It is their first album produced by O'Neill, who was assigned to the band after the tour in support of "Fight for the Rock". This album shows the beginning of Savatage's exploration of progressive metal, in their search for new forms of musical expression. Many fans consider this album the original turning point in their musical identity, distinguishing between the old and new Savatage. It is not a concept album, but it has a constant tone (of darkness, in this case) and is more complex than their previous albums, with two entirely instrumental tracks that go beyond simple guitar riffs and solos, namely "Prelude to Madness" and "Last Dawn". Through Paul O'Neill's connections, he brought in Ray Gillen of Badlands fame (credited as Ray Gillian) to perform a vocal duet at the end of "Strange Wings".
Document 9: Pelléas et Mélisande (Sibelius): Pelléas et Mélisande ("Pelléas och Mélisande"), Op. 46, is incidental music by Jean Sibelius for Maurice Maeterlinck's 1892 play "Pelléas and Mélisande". Sibelius composed in 1905 ten parts, overtures to the five acts and five other movements. It was first performed at the Swedish Theatre in Helsinki on 17 March 1905 to a translation by Bertel Gripenberg, conducted by the composer).
Document 10: True Norwegian Black Metal – Live in Grieghallen: True Norwegian Black Metal – Live in Grieghallen is Gorgoroth's first full-length live album, released by Regain Records. It was recorded live in the studio at Grieghallen Lydstudio in Bergen and Threeman Recordings in Stockholm. The songs on the album represented the most commonly played songs in Gorgoroth's live set. The cover design by Magnus Wohlfart was radically different from the previous three full-length albums, being more reminiscent of the cover of the album "Under the Sign of Hell" (1997). Most of the album was recorded before the departure of vocalist Gaahl and bass guitarist King ov Hell, who had intended on using the band's name and assets. The bass guitar for this album (originally performed by King ov Hell) was later re-recorded by guitarist and band founder Infernus. Infernus dedicated the album to the late Jon Nödtveidt of Dissection.
Document 11: Symphonic Dances (Grieg): The four Symphonic Dances of the Norwegian composer Edvard Grieg, form the collection notated as Op. 64. They were written c. 1896 and published in 1897. They draw their inspiration from the earlier folk works collected by Ludvig Mathias Lindeman.
Document 12: Sergei Rachmaninoff: Sergei Vasilievich Rachmaninoff (Russian: Серге́й Васи́льевич Рахма́нинов , "Sergey Vasilyevich Rakhmaninov"; ] ; 1 April [O.S. 20 March] 1873 28 March 1943) was a Russian virtuoso pianist, composer, and conductor of the late-Romantic period, some of whose works are among the most popular in the romantic repertoire.
Document 13: Edvard Grieg: Edvard Hagerup Grieg (] ; 15 June 18434 September 1907) was a Norwegian composer and pianist. He is widely considered one of the leading Romantic era composers, and his music is part of the standard classical repertoire worldwide. His use and development of Norwegian folk music in his own compositions put the music of Norway in the international spectrum, as well as helping to develop a national identity, much as Jean Sibelius and Antonín Dvořák did in Finland and Bohemia, respectively.
Document 14: Classical (album): Classical is an album by the guitarist Wolf Hoffmann. It begins with a rendition from Georges Bizet's Carmen, Suite #1 playing the famous "Fate Theme" from Carmen's opera. Next is a version of Edvard Grieg's "In the Hall of the Mountain King." Track #4 is "Arabian Dance" by Peter I. Tchaikovsky. Ravel's "Bolero" becomes a bluesy piece. The CD's final track is a version of Edward Elgar's "Pomp & Circumstance".
Document 15: Peer Gynt: Peer Gynt ( ; ] ) is a five-act play in verse by the Norwegian dramatist Henrik Ibsen published in 1867. It was illustrated by Arthur Rackham as a children's book in 1936. Written in Danish—the common written language of Denmark and Norway in Ibsen's lifetime—it is one of the most widely performed Norwegian plays. Ibsen believed "Per Gynt", the Norwegian fairy tale on which the play is loosely based, to be rooted in fact, and several of the characters are modelled after Ibsen's own family, notably his parents Knud Ibsen and Marichen Altenburg. He was also generally inspired by Peter Christen Asbjørnsen's collection of Norwegian fairy tales, published in 1845 ("Huldre-Eventyr og Folkesagn").
ground_truth: Norwegian