Listen to Clarinet Quintet in A Major, K. 581 "Stadler Quintet": I. Allegro online. Clarinet Quintet in A Major, K. 581 "Stadler Quintet": I. Allegro is an Unknown language song and is sung by L'Archibudelli and Charles Neidich. Clarinet Quintet in A Major, K. 581 "Stadler Quintet": I. Allegro, from the album Mozart: Chamber Music with Clarinet, was released in the year 2001. The duration of the song is 12:13. Download Unknown songs online from JioSaavn.