I'm in a related quandary. My wife and I share a Spotify Family account. I set up a separate Echo account just for her thinking that she could simply change the Echo account from mine to hers so that she could listen to her Spotify playlists and when I wanted to listen to my Spotify playlists all I would have to do is switch the Echo account. Doesn't seem to work that way. I'm under the impression that having multiple accounts on the Echo only controls the Amazon purchasing function, something I doubt we'll ever do with the Echo.