I’ve searched through a bunch of the popular track request threads and they seem to be missing this particular detail.
Say you have 50 artists in your library and each artist has a list of popular tracks identified using last.fm. I’d love to be able to create a smart playlist that would select the TOP 1 popular track from each of the 50 artists. So in total the smart playlist would only have 50 tracks.
(of course I’m assuming all 50 artists actually have at least one popular track)
If things got even crazier and TOP <1> was a variable and you selected “2” then the smart playlist would have 100 tracks in it. (50 artists x 2 tracks from each artist) 
Now if we turned this all the way up to 11, we would also be able to add any of the other current filters to this same playlist.
Yes, I could go through 50 artist’s and select the top popular track from each and make it 5 stars to achieve the same result. But isn’t this the kind of thing computers are really good at? Maybe you have 5000 artists…
Similar request:
https://forums.plex.tv/t/feature-request-plexamp-popular-tracks-radio/632935
