33 Variations in C Major, Op. 120 on a Waltz by Diabelli - Beethoven: 33 Variations in C Major, Op. 120 on a Waltz by Diabelli: Var. 6. Allegro ma non troppo e serioso (C大调33首变奏曲,Op. 120,以迪亚贝利的圆舞曲为主题 - 贝多芬:C大调33首变奏曲,Op. 120,以迪亚贝利的圆舞曲为主题:变奏6 不过分的快板且严肃的)