That's clearly what's happening and it's the problem with the system, it has no way to determine if a song is actually the original recording or if it is an ori

That's clearly what's happening and it's the problem with the system, it has no way to determine if a song is actually the original recording or if it is an original performance based off of a public domain song played correctly the two will be largely identical (to the satisfaction of an algorithm designed to not be fooled by small pace changes in the different performances). It seem ridiculous that (it seems) the Youtube provided royalty free tracks aren't explicitly stored in the Content ID system as un-claimable songs. It would probably require modifications to privilege those matches before others but if you can't even count on music provided by YT I don't see how any creator could feel safe using any music in their work.