with artists such as taylor swift opening up the idea of owning your masters, some artists are rerecording old albums to own them! the problem is, musicbrainz doesn't really have a way to reflect this. the page for taylor swift looks messy because all the albums are in one place. currently, it shows that she has 15 studio albums, when she only really has 9 unique ones. it might be important to add this because it could also be used for acoustic albums. a release group relationship could be good too. for example, "fearless (taylor's version) is a rerecording of fearless". just an idea!