More than 16 conditions

Geez ... what are the other 15?

I have about 20 moods in MyTag and want to make a Intelligent Playlist to present all tracks that are not tagged with any Mood.

Okay, but that should certainly be possible in fewer than 16 rules.

Please tell me when you crack it :)

If there was a selection "starts with/doesn't start with" when choosing MyTag in Intelligent Playlist, then I could add the word "Mood" in front of every mood like "Mood Groovy" and then make a Intelligent Playlist presenting every track that doesn't start with the word "mood". 

I could do that in ONE filter, but it needs a bit of prep...

rekordbox currently has a problem where if you don't have a tag, it doesn't fit into the "not" list, so every track needs to have at least one tag in order for it to be included or excluded from a search / filter. The best thing to do is tag all tracks that aren't already tagged with a mood tag as "No Mood." Now you can filter it down pretty much any way you want with inclusive / exclusive filtering.

Then I first have to manually mark every track that has No Mood as "No Mood" and be 100% sure about to mark every new track with either a mood or "No Mood" in the future.

And I have more than Mood as MyTag.