Comment 2 for bug 1570335

I'm not sure how well MusicBrainz would work at taking the existing file's metadata tags and improve them. When I've updated my own music using Picard, to get good results I've had to pass it a collection of music that is part of the same album and occasionally choose something other than its first guess. I'm inclined to use the tags in a file as is if they're available and just tell users to update the files tags if they think they're wrong.

We don't want a system where the mediascanner "corrects" the tags to the wrong release and the user can't fix it.

On the other hand, if we have a file with no metadata tags at all, perhaps it'd make sense to make use of their AcoustID muisc fingerprinting system to look up metadata. I'm not sure how common this scenario is though, or how likely we are to get a useful match though.

When I looked into this kind of thing 4-5 years ago, the open source services weren't anywhere close to commercial services like EchoNest (which has since been bought out by Spotify). Things might have changed since then though. I think MusicBrainz was on a different fingerprinting system back then, for instance.