Unfortunately it does not work for me. Mp3Tag is stubborn to write ALBUM ARTIST in VorbisComments, even if I tell it to use the %albumartist% field. Mapping ALBUMARTIST as Source and ALBUMARTIST or ALBUM ARTIST as Target leaves no field filled. The same happens if I use the above advice (with no custom mapping active). Before it used to be so only with mp3's, now it happens with FLACs as well.
How do I make mp3tag to simply write ALBUMARTIST as it should? I use v. 2.49