Listen to George Rochberg - Sonata for Viola & Piano [Allegro moderato] online. George Rochberg - Sonata for Viola & Piano [Allegro moderato] is an English language song and is sung by Angelin Chang, piano -- Joseph de Pasquale and Viola. George Rochberg - Sonata for Viola & Piano [Allegro moderato], from the album Soaring Spirit, was released in the year 2004. The duration of the song is 9:20. Download English songs online from JioSaavn.