A:Answer If you want to get the most out of it, you'll need an Amazon Prime account. For that annual price, you get a good portion of Amazon's music catalog - without advertising as part of your Prime membership. You can stream Spotify and other services to it as well (still believe you need an Prime account but not positive). If you want more, you can pay for Amazon Music Unlimited - one device price is about half of what you'd pay for the "all your devices" plan. Since they just updated the pricing of those, best to check out the service at amazon.com. HTH