Listen to Elgar: Variations on an Original Theme, Op. 36, Enigma: IX. Nimrod (Adagio) online. Elgar: Variations on an Original Theme, Op. 36, Enigma: IX. Nimrod (Adagio) is an English language song and is sung by London Symphony Orchestra and Sir Adrian Boult. Elgar: Variations on an Original Theme, Op. 36, Enigma: IX. Nimrod (Adagio), from the album The Classic Experience, was released in the year 2008. The duration of the song is 3:51. Download English songs online from JioSaavn.