High Quality Content by WIKIPEDIA articles! Franz Schubert`s last three piano sonatas, numbered 958, 959 and 960 in Deutsch`s catalogue of Schubert`s complete works, are the composer`s last major compositions for the piano. They were written during the last months of Schubert`s life, between the spring and autumn of 1828, but were not published until about ten years after his death, in 1838–39. Like the rest of Schubert’s piano sonatas, they were mostly neglected in the 19th century. By the late 20th century, however, public and critical opinion had changed, and Schubert`s last sonatas are now considered amongst the most important of the composer`s mature masterpieces. They are part of the core piano repertoire, appearing regularly on concert programs and recordings.