Listen to Sonata for Viola and Piano, H. 186: II. Adagio ma non troppo online. Sonata for Viola and Piano, H. 186: II. Adagio ma non troppo is an English language song and is sung by Martin Outram and Julian Rolton. Sonata for Viola and Piano, H. 186: II. Adagio ma non troppo, from the album Benjamin Britten & Frank Bridge: Reflections, was released in the year 2014. The duration of the song is 11:53. Download English songs online from JioSaavn.