Listen to Piano Sonata No. 31 in A-Flat Major, Op. 110: III. Adagio ma non troppo - Fuga - Allegro ma non troppo online. Piano Sonata No. 31 in A-Flat Major, Op. 110: III. Adagio ma non troppo - Fuga - Allegro ma non troppo is an Instrumental language song and is sung by Grigory Sokolov. Piano Sonata No. 31 in A-Flat Major, Op. 110: III. Adagio ma non troppo - Fuga - Allegro ma non troppo, from the album Grigory Sokolov Plays Bach and Beethoven, was released in the year 1979. The duration of the song is 12:23. Download Instrumental songs online from JioSaavn.