Sonata is a vague term, with varying meanings depending on the context and time period. By the early 19th century it came to represent a principle of composing large-scale works.
Sonata, type of musical composition, usually for a solo instrument or a small instrumental ensemble, that typically consists of two to four movements, or sections, each in a related key but with a unique musical character.
Obvykle jsou seskupeny podle jejich prvních vydání: (1) šest sonát K. 279–284 | (2) tři sonáty K. 309-311 | (3) tři sonáty K. 330-332 | (4) sonáta K. 333 | (5) Fantasy a Sonata K. 475/457 | (6) pozdní sonáty K.