Listen to Elgar: Introduction and Allegro, Op. 47: Allegro I - online. Elgar: Introduction and Allegro, Op. 47: Allegro I - is an Unknown language song and is sung by London Philharmonic Orchestra and Vernon Handley. Elgar: Introduction and Allegro, Op. 47: Allegro I -, from the album Elgar: Violin Concerto & Introduction and Allegro, was released in the year 2013. The duration of the song is 3:48. Download Unknown songs online from JioSaavn.