Autoplaylist criteria for empty/blank fields

[Tashanian]

Apologies if I somehow missed this in the documentation....

I am trying to create an autoplaylist that filters on all tracks with nothing in the "Lyrics" field. The goal is to identify all tracks that need lyrics or instrumental applied and separate them from those that already have lyrics.

I select "Lyrics" from the criteria list and it creates a line that says "Lyrics contains click to set"

Is there a criteria value or string that is used for blank or empty? Not sure what needs to go in the "click to set" area or if it's even possible.

Appreciate it, wonderful app.

[Lowlander]

You can set it to is unknown instead of contains.