<P> Other themes also have such variations: The melody and accompaniments of the Rivendell theme often appear separately, so the Arpeggio accompaniment can be described as a separate motif, possibly for Elrond . The Rohan theme appears twice (although, admittedly, within a single piece) in a "klaxon" variation, as does one of the choral settings of "The Call". Aragorn's theme appears in a "second - age" variation attached to Isildur, mentioned by Doug as "the fleeting shape of the Fellowship theme ." For Anduril, Shore introduces a triumphant setting of the otherwise pensive Minas Tirith theme, accompanied by the Rivendell Arpeggios . Since he used those Arpeggios as a device for transforming a theme in The Hobbit, this too may be considered a separate theme . The woodflute tune for Eowyn and Faramir, also, can be seen as a summation of Eowyn's various themes, and hence may be considered a theme, as well . </P> <P> Although the score is by Howard Shore, some of the diegetic music in the film is not . Most of it was composed by a New - Zealand musician collective known as Plan 9 (Jannet Roddick, David Donaldson, Stephen Roche) and David Longe, known collectively within the context of the Lord of the Rings (and The Hobbit) as "The Elvish Impersonators ." They composed several vocal and instrumental pieces as well musical sound effects used for the Ring and Sauron, for the Dead Marshes and for Fangorn . Other musical sound effects, added by the films' sound design department, include war horns and bells ringing . Other film compositions were made by Enya, co-producer Fran Walsh and by the actors Viggo Mortensen and Billy Boyd . </P> <P> The role of these pieces within the structure of the music of the Lord of the Rings is arguable . While the weren't composed by Howard Shore, they often were accompanied by the score: The second verse of "Edge of Night" was accompanied by the string section and picked up by the clarinet, Gandalf's performance of the Old Walking song was harmonized by the orchestra, the underscore to both of Enya's compositions was orchestrated and conducted by Howard Shore . The fiddle accompaniment of the Drinking Score is even featured in the Live Performances . All of those pieces (excluding what are outright effects like horn calls, as well as "Rock and Pool") are even featured on the album . Some of it, like Aragorn's coronation chant, was even concertized on the Lord of the Rings Symphony . </P> <P> Many of the musical sound effects like horn - calls were made to complement the score while other pieces shared a more coincidental connection to the score, such as the stepwise melody of "The Edge of Night" (evoking the Shire music) and its open - fifth opening figure, evoking Gondor where it is sung in the film . Others like the diegetic 5 / 4 - time drum - beats were outright inspired by the score . </P>

Who sings the lord of the rings theme song