I would appreciate some tips on finding musical scores on the Internet. I have been trying to prepare a medieval piece called The Lament of Tristan (aka Lamento di Tristano) for the gang. The version I now have has mistakes in it, so I thought I'd look for a different version on the Internet.

When I asked Google to look for The Lament of Tristano, it found 1,830 pages. However, all of them I went to were merely scholarly articles that mentioned the piece in their text. Or else they were advertising for bands that had recorded the piece and wanted to sell me their CD. I searched the Google results page for "score" and "MIDI" but no luck.

I'm sure this famous piece is on the Web somewhere. Any tips on how to find it?