A piano duet from Schubert's final year, 1828. Among his numerous duets, it is acclaimed as a masterpiece of high musical content. The dedication was made by the publisher to Caroline, the younger daughter of the Esterházy family, whom Schubert taught piano during his two stays in Zseliz.

The work consists of three continuous movements, but can essentially be considered a four-part structure. It is a structurally well-organized work, with the dark and melancholic yet captivating theme from the beginning of the first movement recurring in the latter half of the third movement, eventually developing into a fugue to conclude the piece.