Multiple value delimiter

[simoncn]

It is fine to use the | character in a tag value.

MinimServer has two restictions for the AlbumArtist tag:

1) Each album can have only a singe AlbumArtist value. If you separate multiple names with the | character, the combined string counts as this single value.

2) The AlbumArtist value must be the same for all tracks of the album. If this isn't the case, MinimServer writes a warning message to the MinimServer log and ignores the AlbumArtist value for all tracks of the album. This might be why you are seeing the AlbumArtist value as [unknown]. You can check this by looking for warning messages in the MinimServer log.