You're welcome! I'll try to fill in some more when I get a chance.
One question -- why don't you redlink (create links to the non-existent pages) all the songs? Then the report at Special:WantedPages would tell you which songs have at least 2 uses and could have a page created for them..... It would also save time having to go back and link them once the song page is created. Just something I wondered while I was trying to figure out which songs to link.