I have an album of Tony Bennett on which one song is a duett with Diana Krall. I have thus set ALBUMARTIST=Tony Bennett, for all songs ARTIST=Tony Bennett (except for the duett) and for the duett ARTIST=Tony Bennett & Diana Krall (and I use & as artist tag seperator).

In the song info it can be seen that slimserver uses TRACKARTIST instead of ARTIST in this case (I assume since ALBUMARTIST ist set). That's problematik for the dispaly on the Squeezebox and in the web interface if ARTIST is part of the display. I have e.g. set the display format to "TRACK (ARTIST)" but for this album only "TRACK" is shown (in the web interface "TRACK from ALBUM" instead of "TRACK (ARTIST) from ALBUM" is shown).

Either TRACKARTIST should be shown as ARTIST or ARTIST should be set internally in addition to TRACKARTIST.