I'd basically like to create two lists: one contains all tracks that have an ARTIST tag that differs from the track's ALBUMARTIST. For example, ALBUMARTIST is "Michael Jackson": if the ARTIST tag contains anything other than "Michael Jackson" I want it in the list. The second list contains all tracks that have a COMPOSER tag that differs from a specified string. The specified string is necessary because the COMPOSER tag contains data that I can't compare against any other tag (well not always, but mostly.)
To be clear, this works per album: each album has it's own ALBUMARTIST and/or it's own specified string.
Would this be possible to do? Thanks in advance!