Google just announced Android users will now be able to download all of their songs from a new version of Google Music Manager, allowing you to create a backup of both purchased music from the Google Music store and content you’ve uploaded yourself.
Google noted downloaded songs will be formatted as mp3 files at 320kbps and downloads can be initiated through “Download purchased music” or “Export your library” options within Music Manager. You won’t see the new download options until you’ve already uploaded music, however. The update will also include a new option in the dropdown menu next to track titles that will allow you to share the YouTube video for that particular song with your circles on Google+.
Music Manager allows you to download all of your purchased tracks and place them in the folder you specify. Once you’ve downloaded all of your purchased tracks, you will see a checkbox with an option to download everything since that download or to download all tracks again.