Gustav Holst/Geoff Knorr arranged for Brass Band by Phillip Littlemore.
Listen to it at https://www.youtube.com/watch?v=pflN4brPdQ8
 
Gustav Holst wrote his suite The Planets during the early years of the first world war. The expansive movement, Jupiter, contained a tune that Holst later used to set the poem by Cecil Spring-Rice, I Vow To Thee, My Country.
Originally for Unison voices with orchestram Holst adapted it as a hymn tune and called it "Thaxted", named after the village where hr lived for many years.
The American composer, Geoff Knorr, incorporated Holst's music into his score for the strategy-based video game Civilisation V, where it is used to depict the England of Elizabeth I.
It is from this music that this transcription is made.