Gustav Holst was among those few classical composers to exert a major influence on rock music and popular music in the mid- to late- 20th century -- which is all rather ironic, since he passed away in 1934. Holst was part of the early- 20th century school of English composers usually referred to as post-Romantics -- along with his friend Ralph Vaughan Williams, with whom he shared a common interest in English folksong, he helped advance the cause of distinctly English orchestral music far beyond the boundaries of England; but much of Holst's music, as distinct from that of his contemporaries, was also steeped in Eastern influences that made it unique.