Just trying to verify if I understand your suggestion correctly. You want to be able to use a playlist as a criteria when creating other (smart) playlists — either to combine or hide their items.
e.g. hide all tracks of a Christmas playlist from a „common music“ playlist.
If so, there’s already an existing thread discussing that option. In that case, please comment/vote in that thread in order to help us avoid distracting or cannibalizing votes (and closing this one as a duplicate).
