The Six Sonatas K. 279╩284 were probably written around the beginning of 1775. Mozart refers to them in letters that he sent to his father from his trip to Paris (1777╩79). In these letters he often refers to them as the ''difficult sonatas'' ╩ probably alluding to the special interpretative demands. He thus provided these works with rich dynamic and articulative markings, advising a reserved tempo for their performance. The Sonata K. 280, which has a special place amongst the early sonatas due