Franz Schubert's last three piano sonatas, D 958, 959 and 960, are his last major compositions for solo piano. They were written during the last months of his life, between the spring and autumn of 1828, but were not published until about ten years after his death, in 1838–39.[1] Like the rest of Schubert's piano sonatas, they were mostly neglected in the 19th century.[2] By the late 20th century, however, public and critical opinion had changed, and these sonatas are now considered among the most important of the composer's mature masterpieces. They are part of the core piano repertoire, appearing regularly on concert programs and recordings.[3]
One of the reasons for the long period of neglect of Schubert's piano sonatas seems to be their dismissal as structurally and dramatically inferior to the sonatas of Beethoven.[4] In fact, the last sonatas contain distinct allusions and similarities to works by Beethoven, a composer Schubert venerated.[5] Nevertheless, musicological analysis has shown that they maintain a mature, individual style. The last sonatas are now praised for that mature style, manifested in unique features such as a cyclical formal and tonal design, chamber music textures, and a rare depth of emotional expression.[6]
Each one of the three sonatas is cyclically intraconnected by diverse structural, harmonic and melodic elements tying together all movements,[7] as well as interconnecting all three sonatas together. Consequently, they are often regarded as a trilogy. They also contain specific allusions and similarities to other Schubert compositions, such as his Winterreise song cycle; these connections point to turbulent emotions expressed in the sonatas, often understood as highly personal and autobiographical.[8] Indeed, some researchers have suggested specific psychological narratives for the sonatas, based on historical evidence concerning the composer's life.[9]