Listen to I. Allegro - 1 online. I. Allegro - 1 is an English language song and is sung by Jutta Zoff, Johannes Walter, Staatskapelle Dresden and Otmar Suitner. I. Allegro - 1, from the album Wolfgang Amadeus Mozart.: Bassoon Concerto / Concerto for Flute and Harp (Klier, Walter, Zoff, Dresden Staatskapelle, Kurz, Suitner), was released in the year 2009. The duration of the song is 9:59. Download English songs online from JioSaavn.