Listen to Variations on a Theme, Op. 36, "Enigma": IX. Nimrod (Adagio) online. Variations on a Theme, Op. 36, "Enigma": IX. Nimrod (Adagio) is an English language song and is sung by Sir Adrian Boult and London Symphony Orchestra. Variations on a Theme, Op. 36, "Enigma": IX. Nimrod (Adagio), from the album Favorite Film Music [International Version] (International Version), was released in the year 2011. The duration of the song is 3:58. Download English songs online from JioSaavn.