Newly discovered autograph fragment
Mozart's famous Sonata in A major, K. 331 (with 'Alla Turca' finale)The Hungarian National Széchényi Library has just launched a website to make this precious manuscript freely accessible to all:- http://mozart.oszk.hu/index_en.html
Balázs Mikusi (firstname.lastname@example.org)
Head of MusicNational Széchényi Library, Budapest
You will also be delighted to hear that Henle is producing a new Urtext edition of the sonata - there's a video about it here.