I have been trying various search terms to get cover art to sync. This is a very simplified version of my overall sync term, but it may help to figure this out:
([Rating]=>=3 [Media Type]=[Audio]) or ([Media Type]=[Image] [Name]=Folder)
At the moment, all that does is sync all my favorite tunes & all cover art. First, I need to restrict it to basically find duplicates. The no duplicate function working backwards would probably work. Using
~dup=[Artist],[Name]
seems to pull out the duplicate audio tracks. If only I could get the Folder.jpg files tagged correctly with artist and album info, I could add a duplicate finder outside of the OR statement that would find duplicates based on artist & album. Then, items without art would not copy, which is not a problem for me.
It seems like (theoretically) all I need is to tag my folder files. I'm going to experiment because I know MC has good tagging capabilities.