Missing tag for ORIGINAL ALBUM resp. TOAL

[simoncn]

I understand why you find this limitation surprising. It goes back to the early days of MinimServer (for example, see this post).

As mentioned in the older post, the ALBUMARTIST value isn't only used for indexing. It is the other uses that make it problematical to allow multiple values, especially for albums where the tracks don't all have exactly the same combination of AlbumArtist tags. I suspect this applies to many libraries.

If you are using AlbumArtist to mean "main artist", you can add AlbumArtist:MainArtist to aliasTags and you can add MainArtist:AlbumArtist to indexTags. This removes the warning messages and gives you a way to browse by multiple AlbumArtist tags.