When an recording has relationships with other recordings (covers, etc) it would be helpful to show also the artist credited on these recordings if it is different from the former one, i.e. make the links from http://test.musicbrainz.org/recording/48cfc6cc-cb22-493c-b5c7-75fdcecd4a6a/relationships give the same info. as http://musicbrainz.org/track/48cfc6cc-cb22-493c-b5c7-75fdcecd4a6a.html (artists covering, etc)

It also applies to other levels, for example, http://test.musicbrainz.org/release-group/3d00fb45-f8ab-3436-a8e1-b4bfc4d66913/relationships / http://musicbrainz.org/show/release/relationships.html?releaseid=18725 : the former should show "is covered by Kerrang! Presents: 'Remastered' by Various Artists ; is covered by Master of Puppets by Dream Theater"