Thank you! I think both are necessary! :)
We need really smart playlists
Please add the option to combine AND and OR-conditions in smart playlists. It's really a big big struggle to work around. It should be no big deal to program it.
A workaround could be the "is in playlist xy"-function selecting another smart crate.
Please release us from the pain and include one of these little features (the first one would be the best one because of the RAM) <3