How do I enable Google Play Music?
On your Android phone or tablet, say "Hey Google, open Assistant settings." Or, go to Assistant settings. Tap Music. Choose a music service.
Listen to music - Android - Google Assistant Help
Is play music on Google free?
Google has made its streaming music service Google Play Music free to use, without a subscription. The catch is that you'll have to listen to ads, similar to the way free versions of Spotify and Pandora (P) work.
Google Play Music is now free - CNN Business