I may have missed it but I would like to create "smart" playlists like Apple has in iTunes (and maybe in Music). Things like the ability to create a smart, dynamically updating playlist of only songs (files, really) rated three stars or more. Or only songs played five times or less (so I can hear songs that I don't often listen to as much).
Playlists are really a major feature for local files, and although I do actually use my Macs and iTunes with my Aurender's local files, I want to create local file playlists too because those are often higher resolution files. Anyway, please consider this kind of personal music and library curation feature.