An expertly contrived arrangement by Carlo Martelli of the most famous movement from Holst's ever popular suite, which contains the well known tune I Vow to Thee my Country.This page lists all sheet music of I Vow to Thee, My Country by Gustav Theodore Holst (1874-1934) I Vow To Thee My Country is a British patriotic hymn and was written by Cecil Spring-Rice in 1918 after World War I. The melody of I vow to thee my country is also known as the slow middle section of "Jupiter" from The Planets Suite by English composer Gustav Holst.Chords: C, F, G, Am. Chords for I Vow to Thee, My Country. Chordify is your #1 platform for chords. You can also get a more precise list by choosing a sub-category, at the left. You could also filter these songs (limit them) by type.