Added as https://www.ventismedia.com/mantis/view.php?id=15142

Thank you very much man that works!

I see this too. When the condition is 'contains' then the string is parsed as multiple values and any of those values causes a match.
When the condition is 'does not contain' it seems to be ignored. Maybe there's a mismatch between handling single and multiple value strings.

You could work around this by separating your criteria. E.g.:
genre: contains - pop;wave;pop-rock
genre: does not contain - soft
genre: does not contain - hard

Another example, I want a list that is hardrock;rock;metal but if I exclude soft and pop, songs with soft rock and pop rock still show up.

If anyone knows how do make this work please help. There must be a way. It works in Winamp and Itunes but I'd rather use Mediamonkey.

This is very important element for making autoplaylists work as I'm having this issue in most of them.

How do you get the advanced function to do this:

For example when creating an 80s upbeat playlist I set the "all function" and put:

genre: contains - pop;wave;pop-rock
genre: does not contain - soft;hard

Songs that are hard rock and soft rock still show up in the playlist.