Overview
"National Emblem", also known as the National Emblem March, is a U.S. march composed in 1902 and published in 1906 by Edwin Eugene Bagley. It is a standard of the U.S. march repertoire, appearing in eleven published editions. The U.S. military uses the trio section as ceremonial music for the entry of the ceremony's official party.
History
Bagley composed the score during a 1902 train tour with his family band, Wheeler's Band of Bellows Falls, Vermont. He became frustrated with the ending, and tossed the composition in a bin. Members of the band retrieved it and secretly rehearsed the score in the baggage car. Bagley was surprised when the band informed him minutes before the next concert that they would perform it. It became the most famous of all of Bagley's marches. Despite this the composition did not make Bagley wealthy; he sold the copyright for $25.
In the first strain, Bagley incorporated the first twelve notes of "The Star-Spangled Banner" played by euphonium, bassoon, alto clarinet, tenor saxophone, and trombone, disguised in duple rather than triple time. The rest of the notes are all Bagley's, including the four short repeated A-flat major chords that lead to a statement by the low brass that is now reminiscent of the national anthem. Unusually, Bagley's march does not incorporate either a breakstrain or a stinger. However the exact repetition of the trio's melody at a chromatic mediant (A-flat Major/m.3 of Trio, then C Major/m.10 of Trio) is suggestive of a breakstrain.
From Wikipedia (CC BY-SA 4.0).