The rumours around Amazon's forthcoming streaming service have been swirling for quite some time but now Amazon Music Unlimited is here. It's a relaunch of its original Prime Music service and is available to Amazon Prime members for $7.99 per month or just $3.99 per month for those with Amazon’s voice-controlled Echo devices.

Besides the price, Amazon Music Unlimited is pretty similar to its other streaming competitors like Apple Music, Spotify and Tidal. It deals with all three major labels to deliver "tens of millions" of songs. Apps for Android, iOS, Sonos, and desktop have all been designed to feature lyrics integration and the ability to automatically download music Amazon thinks you'd like as background music offline.

Amazon Music Unlimited comes with the interesting feature Side-by-Side that gives fans a unique perspective of the artists they love, by adding artist commentary with selected tracks from the their catalog. So far there's specific words from The Chainsmokers, Jason Aldean, Lindsey Stirling, Sting, Norah Jones, One Republic, and Kongos for now, with more coming soon.