'''Gustav Theodore Holst''' (21 September 1874 - 25 May 1934) was an English composer (of [[UsefulNotes/{{Sweden}} Swedish]] and UsefulNotes/{{Latvia}}n descent) of the late 19th to early 20th century. He suffered from neuritis so had problems with his right hand, shattering his childhood dream of being a concert pianist.
Holst is most notable for his orchestral Suite ''The Planets'', a composition that became very popular and would go on to influence many of the composers and musicians of the 20th century.

The music of "I Vow To Thee, My Country" is derived from the section "Jupiter" of ''The Planets'', by the way, so you most certainly have heard of Holst's work if you're in Britain or other Commonwealth countries.

!!Tropes present in Holst's works:
* {{Bookends}}: ''The Planets'' begins and ends with a composition in [[UncommonTime quintuple meter]].
* EtherealChoir: "Neptune" from ''The Planets'' ends with a choir singing, suggesting the infinity of the universe.
* IAmVeryBritish: Holst's music has a very typical British pomposity to it: ''Edgon Heath'', St. Paul's Suite...
* IllBoy: From childhood, Holst had a nerve problem that restricted use of his right arm and made his dream of becoming a concert pianist impossible.
* LastNoteNightmare: "Uranus: The Magician" is mostly whimsical and bouncy bouncy, until the end, where the 4th to last note is a dissonant crash, followed by a softer echo, and an unsettling resolution. It's a near polar opposite fom the previous movement, "Saturn: The Bringer of Old Age".
* MusicalPastiche: When composing several pieces for ''Film/StarWars'', John Williams incorporated parts from ''The Planets'' such as "Venus" inspiring Leia's Theme as well as the using the main theme of "Jupiter" and the second part of "Mars" during the attack on the Death Star, and the beginning and end of "Mars" during the capture of the Blockade Runner and the Destruction of the Death Star respectively. Also the music where Luke is dragging Vader to the Shuttle Craft quotes the beginning of "Uranus".
* OrchestralBombing: "Mars: The Bringer Of War" in ''The Planets''.
* PatrioticFervor: "Jupiter" from "The Planets" has a mid-section that Cecil Spring Rice later used as the melody for the patriotic hymn "I Vow to Thee My Country".
* ShoutOut:
** ''Edgon Heath'' was based on the novels of Creator/ThomasHardy, whom Holst particularly liked.
** "Jupiter, Bringer Of Jollity" is briefly quoted by Music/FrankZappa during "Invocation & Ritual Dance Of The Young Pumpkin" on ''Music/AbsolutelyFree''.
* SmallReferencePools: Better known for ''The Planets'' than anything else he ever composed.
* StandardSnippet: "Mars", "Jupiter", and "Neptune" from ''The Planets'' are among the most plagiarized and quoted musical compositions of all time. Virtually every science fiction movie or battle movie has a score directly inspired by these movements.
* TimeMarchesOn: ''The Planets'' was composed in 1915, before Pluto was named a planet in 1930. Holst was still alive at the time, but his MagnumOpusDissonance regarding ''The Planets'' meant that he had no interest in writing a movement for Pluto. For decades people felt this absence was unfortunate, and other composers such as Clive Strutt and Colin Matthews have added movements about Pluto to the work, which are occasionally included in concerts and recordings. The situation changed again when in 2006 Pluto was declared to be a dwarf planet, making Holst's musical piece up to date again.
* TropeMaker: Almost single-handedly popularized the wind ensemble. Your school band would not exist if it weren't for Holst. He did this particularly with First Suite in E-flat for Military Band.
* UranusIsShowing: "Uranus" is part of ''The Planets''.
* WarIsHell: "Mars: Bringer of War" is a dark and brooding opener of ''The Planets'', evoking the militaristic marching associated with warfare. It was composed during UsefulNotes/WorldWarI too.
* WingedHumanoid: "Mercury, the Winged Messenger" from ''The Planets''.