The HMS Trinidad March was composed for the ship on which George Lloyd served during the Second World War and became, in his words, "the official ship's march". When HMS Trinidad was commissioned on 14 October 1941, bandmaster Harold A Davis asked George to write the ship's official march. Unbeknown to Harold, a friend of the ship's captain, the composer Ralph Vaughan Williams, had also been invited to write a march. The captain agreed to listen to both men's marches and decide which was to be used. Vaughan Williams' march was not popular with the bandsmen and when both pieces were premiered in the ship's aircraft hangar, the captain announced that George's music would be adopted as the HMS Trinidad's official march. George's rousing march echoes the role of the Fantasia on British Sea Songs traditionally played at the Last Night of the Proms, with it's links to the Navy and it's catchy tunes and up tempo rhythms, which encourage audience participation.