For mobile devices, download and launch the Amazon Music app on your device, then sign in using information for your primary Amazon account. For Alexa-enabled devices, just ask, "Alexa, play music" or ask for your favorite song, artist or album.How do you access Amazon Music?
Click “Upload Your Music” on the Amazon Music website to access it. Once you’re done, you can listen to your music from the Amazon Music website or with the Amazon Music apps on Android, iPhone, and iPad. Amazon’s service is nowhere near as generous as Google’s.