New Smarter Playlists Date Filter
I've added a Date Filter component to Smarter Playlists. This component lets you filter tracks based upon the release date of the track's album. Here's an example program that uses the date filter to get all of the early Beatles tracks (those that were released before Revolver).
The Date Filter for this program is configured like so:
Thanks for all the suggestions, for improvements. We are rapidly heading toward an official release.