A few months ago, all the works of Mozart were digitized and made available to everyone for free! It's wonderful to be able to have access to this - I just wish the Web site was a bit easier to figure out! With that in mind, here's how I use it:
1.) http://dme.mozarteum.at/DME/nma/nmapub_srch.php?l=1
2.) Type in the Kochel # in the KV search box and hit return (if you don't know what the Kochel # is, try searching Google for the piece by title).
3.) The link to the score will be in red and to the right of the item title - click on it.
4.) On the top left there's a tab called "Inhalts - verzeichnis" - click on it
5.) NOW - you should see the pdf icons which you can download (yay!)
-Bob