On 22nd May YouTube started their new music streaming service called "YouTube Music". The service will be available at first in the following countries: USA, Mexico, Australia, New Zealand and South Korea. With YouTube Music you can not only stream millions of songs for free (singles, albums and remixes), but you can also watch music videos, live recordings and other rare stuff, that you can only see on youTube. Furthermore you can find thousands of playlists across all different genres.
They also offer a fee required version of YouTube Music where you can stream music free of ads and even download your music. With the "offline mixtape" your current favorite songs will be downloaded automatically, just in case you would forget. So far there are no changes for Google Play users.
YouTube Red will be replaced by YouTube Music. If you delivered your content to YouTube Red in the past, it will be also available on YouTube Music.
If you want to know when YouTube Music will be available in your country, you can get notified here.