Re: how do I download a purchased album
Welcome to Android Central! Where did you buy it, Google Play? Open the Google Play Music app, find the album, tap the 3 vertical dot menu button associated with it, and select Download. Once downloaded, it can only be played by Google Play Music, not 3rd party music players. If you want different music players to have access, you have to download the album onto your computer from your Google Music Library website on the browser. Then copy those music files over to your phone via USB connection.