Listen to Sonata for Two Pianos in D Major, K. 448: III. Allegro molto online. Sonata for Two Pianos in D Major, K. 448: III. Allegro molto is an Instrumental language song and is sung by Alfred Brendel and Walter Klien. Sonata for Two Pianos in D Major, K. 448: III. Allegro molto, from the album 111 Piano Masterpieces, was released in the year 2010. The duration of the song is 5:37. Download Instrumental songs online from JioSaavn.