LOS ANGELES—Google is adding a free tier to its subscription streaming music service in the United States, aiming to convert the millions of people who click on the Google Play Music app every month but turn away because they’re prompted for payment information.
The service uses Songza, an Internet radio app that Google acquired a year ago but whose innovations it had reserved for paying customers.
Google hopes the free tier will entice users to pay $10 a month for a subscription that unlocks features.




