Question: What is the birth date of the composer of First Suite in E-flat for Military Band?

Context paragraphs:
English Folk Song Suite: Written in 1923, the English Folk Song Suite is one of English composer Ralph Vaughan Williams's most famous works for military band.  It was published originally as simply Folk Song Suite.  Its premiere was given at Kneller Hall on 4 July 1923, conducted by Lt Hector Adkins.

Thomas D. Singleton: Thomas Day Singleton (Birth date unknown – November 25, 1833) was a United States Representative from South Carolina.  He was born near Kingstree, South Carolina but his birth date is unknown.

First Suite in E-flat for Military Band: The First Suite in E♭ for Military Band, Op. 28, No. 1, by the British composer Gustav Holst is considered one of the cornerstone masterworks in the concert band repertoire.  Officially premiered in 1920 at the Royal Military School of Music, the manuscript was originally completed in 1909.  Along with the subsequent Second Suite in F for Military Band, written in 1911 and premiered in 1922, the First Suite was the catalysing force that convinced many other prominent composers that serious music could be written specifically for the combination of woodwinds, percussion and brass.  Works such as the "English Folk Song Suite" (1923) of Ralph Vaughan Williams and the "William Byrd Suite" (1923) of Gordon Jacob are leading examples.

Wang Hesheng: Wang Hesheng (Chinese 王和声 Luoyang, 27 December 1955) is a composer of the Military Band of the People's Liberation Army of China, also a member of Chinese Musicians Association.  In 1985, he studied composition from Professor Mu Hong in the central Conservatory of Music.  He became a professional composer of the Military Band of the People's Liberation Army of China after graduation in 1988.

Military band: A military band is a group of personnel that performs musical duties for military functions, usually for the armed forces.  A typical military band consists mostly of wind and percussion instruments.  The conductor of a band commonly bears the title of Bandmaster or Director of Music.  Ottoman military bands are thought to be the oldest variety of military marching bands in the world, dating from the 13th century.

Hippolytus (archbishop of Gniezno): Hippolytus or Hipolit (died c. 1027) was an early medieval archbishop of Gniezno.  His place and date of birth date are unknown but the medieval historian Jan Długosz claims that he was of noble birth and a Roman citizen.  Modern scholars generally agree that he was not Polish.

Second Suite in F for Military Band: The Second Suite in F for Military Band (Op. 28, No. 2) is Gustav Holst's second and last suite for concert band.  Although performed less frequently than the First Suite in E♭, it is still a staple of the band repertoire.  The "Second Suite", written in 1911 and first published in 1922, dedicated to James Causley Windram, is longer and considered more difficult to play than its sister suite.

The Remix Suite: The Remix Suite (digital title: Michael Jackson: The Remix Suite) is a compilation of remixed hits by Michael Jackson.  Although labeled as a Michael Jackson release, the majority of remixes are of hits during his tenure with The Jackson 5.  Starting from August 25, five remixes each were released digitally as "suites" via iTunes, AmazonMP3 and Rhapsody every two weeks.  It is the fifth album to be released since Jackson's death.  The first suite leaked online two weeks before its intended digital release.

Astro Boy (2003 TV series): Astro Boy (アストロボーイ・鉄腕アトム , Asutoro Bōi: Tetsuwan Atomu , lit.  "Astro Boy: Mighty Atom") is a remake of the 1960s anime series of the same name created by Osamu Tezuka, which was produced by his company, Tezuka Productions, Sony Pictures Entertainment Japan, Dentsu, and Fuji Television network.  It was also shown on Animax, who have broadcast the series across its respective networks worldwide, including Japan, Southeast Asia, South Asia, East Asia, and other regions.  It was created to celebrate the birth date of Atom/Astro Boy (as well as the 40th anniversary of the original TV series).  Under the original English name (instead of "Mighty Atom"), it kept the same classic art style as the original manga and anime, but was revisioned and modernized with more lush, high-quality, near-theatrical animation and visuals.  It combined the playfulness of the early anime with the darker, more serious and dramatic Science fiction themes of the manga and the 1980 series.  The anime broadcast in Japan on the same date as Atom's/Astro's birth in the manga (April 6, 2003) across Animax and Fuji Television.  It was directed by Kazuya Konaka and written by Chiaki J. Konaka at the beginning of the series.  Other writers included were Keiichi Hasegawa, Sadayuki Murai, Ai Ohta, Hirotoshi Kobayashi, Kenji Konuta, and Marc Handler, who was also executive story editor.

Gustav Holst: Gustav Theodore Holst (born Gustavus Theodore von Holst; 21 September 1874 – 25 May 1934) was an English composer, arranger and teacher.  Best known for his orchestral suite "The Planets", he composed a large number of other works across a range of genres, although none achieved comparable success.  His distinctive compositional style was the product of many influences, Richard Wagner and Richard Strauss being most crucial early in his development.  The subsequent inspiration of the English folksong revival of the early 20th century, and the example of such rising modern composers as Maurice Ravel, led Holst to develop and refine an individual style.

Supporting paragraphs: First Suite in E-flat for Military Band Gustav Holst
Answer: 21 September 1874