Schubert: Grand Duo, D. 812, Variations, D. 813 & 3 Marches militaires, D. 733

Sonata for Piano Four-Hands in C Major, Op. Posth. 140, D. 812 "Grand Duo": I. Allegro moderato (C大调双钢琴奏鸣曲,“伟大二重奏” 作品812 - 第一乐章,中庸的快板)