Existing search accounts for differences between artist name and artist credit name on a recording but doesn't account for when the track artist itself is actually different to recording artist.

i.e http://musicbrainz.org/recording/24fe0e42-8176-4480-9f02-ac442a75fab6

When this happens should add the track artist credit to the appropiate fields as well, and should also show the track artist name in the ouput when it is different to the recording artist name.