YouTube is set to launch a service called YouTube Music Key, and Google is set to rebrand Google Play Music All Access to Google Play Music Key. […] YouTube Music Key will offer a 30-day free trial to start, after which the service will run $9.99/month. Interestingly, that price will evidently include both YouTube Music Key and Google Play Music Key. We can’t be sure right now if early adopters of Play Music All Access will continue to enjoy a discounted subscription rate [.] – Liam Spradlin,Android Police