Google's current offerings for streaming music are as follows:
Google Play Music and YouTube Red are subscriptions services for streaming music and the latter offers some benefits for YouTube browsing in general. A YouTube Red subscription lets you save music videos offline and removes ads from videos. You also get exclusive access to original shows. A Google Play Music subscription gives you unlimited music streaming (audio) on your phone. Strangely enough, a Google Play Music subscription currently gives you access to YouTube Red as well, and vice versa. YouTube Music is free and open to all, but works like regular YouTube and the music videos can't be viewed offline.
YouTube's head of music confirmed to The Verge that these services will be merged into one, but hasn't stated a definite timeline for the same. The announcement was expected as the teams for YouTube Music and Google Play Music were merged into one in February this year.
Combining the music services will help Google consolidate its efforts will also make it easier for the company to deal with artists and record labels, adds The Verge.
If nothing else, the merger will simplify the lives of the end users.