music ontology question:
let "foo" be the class of all music releases where the release is attributed to a single artist
let "bar" be the class of all music releases where the release is *not* attributed to a single artist -- so in other words, "bar" is the complement of "foo"
what are better names for "foo" and "bar"? right now i'm calling them "artist releases" and "split releases", but these don't seem to be terms used by musicbrainz for example https://musicbrainz.org/doc/Terminology