Well, a bookmark that updates automatically, to be semantic about it 
…but yes, the thing about bookmarks is that they dynamically update based upon the Focus criteria you use when creating them!
Here’s one I have called “The Beatles Channel” -
Here’s another called “Mid Century Relaxation” -
Hope this gives you the gist. A word of warning about dates for tracks - Roon doesn’t currently honor individual track dates; it only honors album dates, so the track dates don’t work well for compilations. There is a feature request in for this - Please add Year to track listings (for both albums and playlists)