Store multiple album interpreters in a meaningful way

I just gave it a try:

%albumartist%/
%album%/
$if($eq(%musicbrainz_albumartistid%,89ad4ac3-39f7-470e-963a-56509c546377),
		%artist% - %title%,
			%albumartist% - %title%
)

Have now tried only two but could work