[UPDATE: Apple now claims this was a bug; see the updated post]
This is perhaps the worst example of entertainment engineering I’ve ever heard. Blogger and musician jamespinkstone claims that Apple Music deleted countless unusual tracks in his music collection. It “matched” the tracks with entries in its library. Then it deleted the matched ones from his hard drive. When he tried to play a rare piano version of “Sister Jack” he instead heard a common demo version. Apple Music apparently decided the tracks were similar enough to treat as identical.
This is worse than Sony planting malware on PCs to as a sort of copy protection. I’m no musician, but I appreciate the differences in my 3 or 4 versions of early Bonnie Raitt songs.
This is why I don’t trust the big vendors like Apple or Google to host my private ebook library.