Albumartist as performer tag

[simoncn]

You cannot use AlbumArtist in the way you are trying to do. As you have discovered, AlbumArtist has a special meaning for the contents of the Artist index as well as some other special meanings. Also, you cannot have more than one AlbumArtist value for an album.

Instead, you should be able to add Performer tags for your performers. Which tagging program are you using?