The 1st Suite in Eb for Military Band, Op. 28, No. 1, by British composer Gustav Holst, is considered one of the major masterpieces of 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" convinced many other prominent composers that music could be written specifically for band.