So this was a discussion started in Sep 17, and has been requested in various ways on various forums since (my recent post tries, I guess unsuccessfully, to explain the need), and still no solution. Tags, focus, and so on are not a substitute for traversing a hierarchically organized tree. This is basic CS. The UI can be minimally impacted, compare the playlist space in iTunes with the available playlist space in Roon. (btw please don’t think I am promoting iTunes, ugh, but hierarchical playlists they got right, very right.) And the most basic feature of any UI should be to allow the user to do what s/he wants. Each individual’s organization of playlists is a manually curated labor of love, reflecting exactly how that individual wants to access his music. (And has essentially zero metadata errors; “essentially” because there will be some user errors, of course, but those get corrected over time.) Additional approaches are welcomed, but why kill the most compelling way some of us gain access to our music? Others could completely ignore it, using the UI the same way as before.