http://www.uio.no/~ericsp/analyses/elgar.html Another Musical Enigma Eric Spierings doesn't claim to solve Elgar's puzzle, but supplies ideas for interpretation. http://www.janedurant.com/learning_to_listen_to_music.htm Learning to Listen to Music Critique of Variations on an Original Theme ("Enigma") for Orchestra, Opus 36. http://www.fordham.edu/halsall/mod/NATMUSIC.html Music and Nationalism Essay from Fordham University's Modern History Sourcebook includes Elgar's Pomp and Circumstance March Number 1 in an examination of the relationship between various compositions and national pride.