...through the Apple Music subscription, which I had, Apple now deletes files from its users' computers. When I signed up for Apple Music, iTunes evaluated my massive collection of Mp3s and WAV files, scanned Apple's database for what it considered matches, then removed the original files from my internal hard drive. REMOVED them. Deleted. If Apple Music saw a file it didn't recognize—which came up often, since I'm a freelance composer and have many music files that I created myself—it would then download it to Apple's database, delete it from my hard drive, and serve it back to me when I wanted to listen, just like it would with my other music files it had deleted.
For about ten years, I've been warning people, "hang onto your media. One day, you won't buy a movie. You'll buy the right to watch a movie, and that movie will be served to you. If the companies serving the movie don't want you to see it, or they want to change something, they will have the power to do so. They can alter history, and they can make you keep paying for things that you formerly could have bought. Information will be a utility rather than a possession. Even information that you yourself have created will require unending, recurring payments just to access."
When giving the above warning, however, even in my most Orwellian paranoia I never could have dreamed that the content holders, like Apple, would also reach into your computer and take away what you already owned. If Taxi Driver is on Netflix, Netflix doesn't come to your house and steal your Taxi Driver DVD. But that's where we're headed. When it comes to music, Apple is already there.