Android Police shows Amazon TV on Android TV with a list of TV versions of apps now on the Google Play store. Although not yet available, you have the option to register in advance.
Different music streaming services are available on Android TV. Spotify's introduction of Android TV started in May 2016, and Tidal jumped back to Android TV in December 2017. The Amazon Music app's list of apps has a few screenshots where you can preview how your screen will look. Interface
Amazon Music is bundled with your Prime account and has over 2 million songs Can be used. The upgraded layer, called Amazon Music Unlimited, offers 50 million songs on demand, along with high-quality audio options. You do not have any news about when your app is officially available, but you can now book it in the Play Store.