The WORK field is useful for identifying the source song of an arrangement (if MB has it), but currently it only pulls the name of the song, which isn’t very helpful a lot of times. For example, “Earth (Psyvariar)” just shows as “Earth” in the tag field, which is completely meaningless. If Picard could pull the entire tag “Earth (Psyvariar)” it’d be much more useful.
I don’t know if this is an option or not, so I’m making a thread before I submit a feature request ticket. On that note, pulling “Part of” would be useful too… I guess I’ll make a ticket.