Edward Elgar wrote the first of his Pomp and Circumstance marches in 1901. The title comes from Shakespeare's Othello, where Othello bids farewell to the 'pride, pomp, and circumstance of glorious war'. The march opens fast and brilliant; the famous tune is its trio, the calmer middle section, which comes back at the end, grander still.
The tune was an immediate success, and for the coronation of Edward VII in 1902 Elgar reused it in his Coronation Ode, with words by A. C. Benson beginning 'Land of hope and glory'. In the United States its use at graduations is usually traced to 1905, when Yale University played it as Elgar received an honorary doctorate there.
This transcription: Elgar, Pomp and Circumstance, Military March No. 1 in D, Op. 39 (1901): the trio tune of the first violins, bars 1-16, as printed in the full score (London: Boosey & Co., 1902), archive.org RAM10263-2001, pages n13-n14; up an octave, bass line from the cellos and basses, arranged by GOONS Studio.
Transcribed by GOONS Studio from the original work, which is in the public domain.