I am sure a couple of years back, it used to warn you if you tried to add a song that was already on your playlist (you could still do it but had to click OK on the warning). Now it just lets you with no warning. And as someone noted there is no way to sort to see and delete duplicates. I am about done with it too! Playlists are the only reason I have premium and honestly the basic is better since I don't have much control over the playlists. 😑 ... View more