I think that Bill's concept above is interesting and worthy but I wonder (guenuine question) whether it will take away from Sam's intent? Where is the boundary between classic and classical? If the addition of voice is thought to have merit then are their older pieces that have a suitable sung part and if so are they purely of the famous or should anon be included? Again I just don't know but wonder.

It's maybe not possible to include all things of merit but perhaps that could, to some extent at least, be got around by providing links to other web sites with overlapping or complementary content? Where no website is know then just a recognition of the area and a request for links might be useful. Just a suggestion that might possibly be helpful.