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"
Pomp and Circumstance Marches reserve" for the repeat, when the first violins join the violas with the tune. There are subdued fanfares from the brass interrupted by little flourishes from the strings before the opening march is repeated. There is pause, then a little section which starts forcefully but quietens, leading into the "Trio". The "Trio" follows the pattern of March No. 1, with the melody (in the subdominant key of C) played by clarinet, horn and violins. The violins start the "Trio" tune on the lowest note they can play, an "open" G-string, which gives a recognisable "twang" to this one note, and