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 English language song and is sung by Artur Schnabel. Piano Sonata No. 31 in A-Flat Major, Op. 110: III. Adagio ma non troppo - Fuga. Allegro ma non troppo, from the album Beethoven: The Piano Sonatas, was released in the year 2015. The duration of the song is 9:58. Download English songs online from JioSaavn.