Amazon just stepped up its game for Prime users, whether they wanted it or not.
The company has officially launched its streaming music service, which gives Prime members unlimited access to more than a million songs that they can access online or offline—all ad-free. Users can either make their own playlists or choose to play songs from pre-selected playlists. Amazon also went ahead and renamed their Amazon Cloud Player app to Amazon Music. So far, the service only has songs that are more than six months old, likely so they can save costs on licensing newer songs (the kind you'll find on Spotify.)
Even though this is a new service, it's available to all Prime customers at no additional cost, which automatically gives it more customers than Apple's Beats Music service. Whether Amazon members will use it or not is another question.