is_by_artist
Use it like this:
- [ #is/_by_artist :: MusicGroup, Person ] or
- [ is_by_artist :: MusicGroup, Person ]
The artist that performed this album or recording.
Relation describes that: [ #has_/domain :: MusicAlbum, MusicRecording ] ( #has_/name :: is_by_artist ) ( #has_/range :: MusicGroup, Person )