Pomp and Circumstance Marches central "Trio" section. March No. 4 was completed on 7 June 1907, and dedicated "To my friend Dr. G. Robertson Sinclair, Hereford". It was first performed on 24 August 1907, in the Queen's Hall, London, conducted by the composer. The instrumentation is: piccolo (with 3rd flute), 2 flutes, 2 oboes, cor anglais, 2 clarinets in B, bass clarinet in B, 2 bassoons, contrabassoon, 4 horns in F, 3 trumpets in A, 3 trombones, tuba, timpani (3), percussion (side drum, bass drum & cymbals), 2 harps, and strings. The "Trio" was used by Elgar in a song called "The King's Way"
No. 4 Squadron RAAF No. 4 Squadron RAAF No. 4 Squadron is a Royal Australian Air Force squadron composed of the air force special forces Combat Controllers, aircrew who operate the Pilatus PC-9A(F) (Forward Air Control variant) aircraft and instructors for the Australian Defence Force Joint Terminal Attack Controller (JTAC) course. The squadron was previously a fighter and army co-operation unit active in both World War I and World War II. Formed in late 1917, the squadron operated on the Western Front as part of the Australian Flying Corps until the armistice in November 1918. It was disbanded after the war in mid-1919, but