Google Play Music is Chrome app by play.google.com. This application allows you to play your music instantly anytime from anywhere. You can keep up to 20,000 songs on Google Play and you can listen to them easily using web or any android phone or tablet even when you’re not connected and all for free.
All of your Google Play music purchases gets instantly into your music library and you can share a free full play of songs and albums which you have purchased on Google Play with your friends on Google+. Not only this much but it allows you to make your own playlists and you can keep them synced automatically whenever you access your music.
You can sign in from any device and you will find your music is just as you left it.