Seems to me that the metadata problem inevitably becomes prominent over time. Good luck trying to find all music composed or performed by George Harrison for in

Seems to me that the metadata problem inevitably becomes prominent over time. Good luck trying to find all music composed or performed by George Harrison for instance. And some musicians do rerecord popular songs, which means you've got several different performances of the same thing. This isn't even that rare with live albums. I mean sure for the most recent pop music it won't be a problem, but that's a very narrow window of time.