The second movement scherzo in this piece is in B-flat major and minor, is mostly in ¾ except for a surprising stretch of 32 bars in 2/4, and is the shortest movement in the piece. The opening movement, an Allegro in B-flat, 
The second movement scherzo in this piece is in B-flat major and minor, is mostly in ¾ except for a surprising stretch of 32 bars in 2/4, and is the shortest movement in the piece. The opening movement, an Allegro in B-flat, has a second subject in the submediant, G major, and the development contains a fugato treatment of the main theme. The finale consists of a Largo introduction and a lengthy Allegro Risoluto, which after three long trills turns into a massive three-voice fugue in ¾ whose theme begins with a jump of a tenth, and which ends with 124 bars of music marked fortissimo. If the composer's tempo indications were followed, this piece was the longest written for solo piano up to that date, and its third movement Adagio e Sostenuto is the longest slow movement in the composer's piano oeuvre. For 10 points, what fourth-to-last piano sonata by Ludwig Van Beethoven that takes its name from a German word for the piano.
The second movement scherzo in this piece is in B-flat major and minor, is mostly in ¾ except for a surprising stretch of 32 bars in 2/4, and is the shortest movement in the piece.
“{Hammerklavier}” Sonata or Piano Sonata {No.} 29 in B-flat, {Op.} 106