 Before going to London Grainger had composed numerous Kipling settings , and his first mature orchestral pieces . In London , when he found time he continued to compose ; a letter to Balfour Gardiner dated 21 July 1901 indicates that he was working on his Marching Song of Democracy ( a Walt Whitman setting ) , and had made good progress with the experimental works Train Music and Charging <unk> . In his early London years he also composed Hill Song Number 1 ( 1902 ) , an instrumental piece much admired by Busoni . 
