Listen to Mozart: Sonata for Keyboard and Violin in B-Flat Major, K. 15: II. Allegro grazioso online. Mozart: Sonata for Keyboard and Violin in B-Flat Major, K. 15: II. Allegro grazioso is an Unknown language song and is sung by Gérard Poulet and Blandine Verlet. Mozart: Sonata for Keyboard and Violin in B-Flat Major, K. 15: II. Allegro grazioso, from the album Quartet: Music by Mozart, was released in the year 2025. The duration of the song is 1:23. Download Unknown songs online from JioSaavn.