With the Amazon Music app, you can play or download your music collection on your Android device running Android OS version 4.0 or higher when you sign in with the same Amazon account and password you use for your music library on the web.
If you have an eligible Prime membership, you can stream and download Prime Music using the Amazon Music App.
If you're new to Amazon Music, you can get started by playing music that is already stored on your device, or shop the Digital Music Store. You can also import music from your computer using your music library on the Amazon website.
Note: Imported files count against your music library storage limits.
Music that you've saved to the cloud appears on the Cloud tab, and music stored on your device appears on the Device tab.
After you have the app, you can also install the Amazon Music app widget on your home screen. For older phones, press and hold on an empty part of a screen, tap Widgets, and then tap Amazon Music. For newer phones, tap Apps at the bottom of your home screen, tap Widgets at the top of your screen, and then drag the widget to the position you want. From the Amazon Music widget, you can play, pause, or skip songs on your phone. You can also use the widget to access your two most recently played items (songs, playlists, or albums), or to play songs in shuffle mode.