Google Play Music was a piece of shit. I used it for years but you know what? If you had a better copy of something weird, it didn't care - whatever shite 64kbps garbagetrack recorded directly off cassette tape that some monkey uploaded, it would forever trump your own shit. Fortunately it let you back up your music. Except it didn't, which you discovered if you ever tried to recover a library and were given unexplained errors on 98% of your tracks. On the plus side it was a great recommendation engine except it was apparently recommending based on names not play history but it was great for letting you group things except it wasn't because it didn't give a shit what you thought the genre was, it knew better.

Google Play Music let me loop iTunes through Android, badly. It let me stream my local iTunes over T-Mobile for free, sometimes. Usually it let me stream someone else's inferior iTunes over T-Mobile. And it totally stole - Buddy of mine liked a band I introduced him to but Google only had one album. then I put a couple more albums in my iTunes, which were scraped by Google Play Music, and suddenly Google Play Music had three albums. No rights no nuthin' traded hands there.

Google Play Music was a piece of shit that everyone loves only because everything else is worse. Fortunately I'm a rich asshole that can run my own Plex server with Tidal on it but goddamn music technology took a turn for the worse about 2003.