I'm not sure I see what this is really offering customers. It seems like just another paywell for creators to put their content behind. While that's good for them, as a consumer I don't really have much motivation to sign up for another streaming service when I already pay for Spotify.

If an artist is on Spotify, great, I'll listen to their songs a bunch and they'll make a little money off of me. If it's a group I haven't heard much of before and they're good, I'll probably get more into them and end up seeing them when they tour in my area.

If they put themselves exclusively behind another service (cough Kanye West cough Tidal), I'll be forced to find other ways to listen to the album, which will likely be less than profitable for the artist.