[omoikane]

This is an interesting tool and maybe it works for the songs you need, but for classical guitar songs where printed scores are generally available, I would rather just buy those from some reputable publisher (e.g. Zen-On or Doremi).

It has happened quite a few times where I compare tabs in youtube videos with printed scores, and the youtube version turned out to be unique arrangements. It's the same with PDFs on certain sites, especially those that accept user contributed content.

I would rather pay money to get printed scores than to find out later that I have been practicing the wrong thing.