@GooglePlay @TeamYouTube I'm very displeased. You broke the @GooglePlayMusic app to make me use @YouTubeMusic and now albums in my YTM library are being removed from YTM. Songs from them in my playlists say "song deleted" now. What's your deal? This is completely outrageous. 
Appreciate the feedback. We're striving to have the most complete catalog of music in the YTM app, and we’re working closely with all our partners. Also, you don't need to purchase songs to listen to them – it's the same with GPM. Hope this helps clarify!