https://wccftech.com/google-is-ending-support-for-play-music-introduces-youtube-music-migration-tool/

Google's been working on YouTube Music for quite some time now, polishing the service as it goes on. However, for those who do not know, Google Play Music is still around, and a lot of people have been using it. Google recently introduced some new features to YouTube Music, and it seems like the company is so satisfied with YouTube Music that they are making plans for ending support for Play Music and having the YouTube Music serve as the only platform.

Google has just started rolling out the migration tool which is going to help the Play Music users to move all of their content over to the YouTube Music. However, at the time of writing, users can access both services.