with Trio D 600/610 tandem possibly constitute the third movement of the unfinished Piano Sonata in C major, D 613) D 612, Adagio in E major for piano (1818; perhaps the second movement of the unfinished Piano Sonata in C major, D 613) D 613, Piano Sonata in C major (1818, unfinished – fragments of two movements are extant; the Adagio in E major, D 612 as well as the Minuet with Trio D 600/610 possibly constitute the remaining movements) D 625, Piano Sonata in F minor (1818, unfinished – a completed Scherzo with Trio, and fragments of two "Allegro" movements are extant; the Adagio in D major D 505 is probably the second movement) D 655, Piano Sonata in C minor (1819; fragment of an "Allegro" is extant) D 664, Piano Sonata in A major (1819 or 1825; first published as Op. posth. 120) D 769A, Piano Sonata in E minor [formerly D 994] ( 1823, unfinished – fragment of an "Allegro" first movement is extant) D 784, Piano Sonata in A minor (1823, first published as Op. posth. 143) D 840, Piano Sonata in C major, Reliquie (1825, unfinished – first and second movements are complete; third and fourth movements are fragments) D 845, Piano Sonata in A minor (1825, first published as Op. 42) D 850, Piano Sonata in D major, Gasteiner (1825, first published as Op. 53) D 894, Piano Sonata in G major, Fantasie (1826, first published as Op. 78; NSA also appends a discarded 1st version of the second movement) D 958, Piano Sonata in C minor (1828) D 959, Piano Sonata in A major (1828) D 960, Piano Sonata in B major (1828) D Anh. I,8, Piano Sonata in F major (1815, lost or identical to D 157) D Anh. I,9, Piano Sonata in F major (1816, lost or identical to D 459) D deest, Piano Sonata in C major (1825?, lost or identical to D 568 1st version) Miscellaneous piano works D 2E, Fantasy in C minor for piano [formerly D 993] (1811) D 13, Fugue in D minor for piano ( 1812, presumably for piano) D 21, Six Variations in E major for piano (1812, lost) D 24, Seven Variations in F major for piano (1812?, fragment; lost) D 24A, Fugue in C major for piano or organ (1812?) D 24B, Fugue in G major for piano or organ (1812?) D