エニグマ変奏曲
Enigma Variations (My Friends Pictured Within) is a one-act ballet by Frederick Ashton, to the music of the "Variations on an Original Theme" ("Enigma Variations"), Op. 36, by Edward Elgar. The work was first given by the Royal Ballet at the Royal Opera House, Covent Garden, London, on 25 October 1968. It has been revived in every subsequent decade.