iTunes changing song info

Hi there. This has been an intermittent issue with iTunes and purchased content for some time. Here is a thread where I first ran into it: How do I stop i-tunes from changing the genres for my songs without my consent? It seems to involve iTunes reading the store metadata for your purchases rather than what is stored in the tags. It isn't necessarily clear if the tags have been updated or just the database. That might depend on which version of iTunes, on which platform, this occurs on, and other factors such as iCloud Music Library being enabled. I wrote a script to recover affected metadata on Windows but that technique cannot be applied quite so easily on a Mac. What sort of changes are we talking about in your case? Personally my main issues are with capitalization so I wrote another script that enforces my own rules, to which I can freely add exceptions. Again a Windows script that wouldn't be trivial to port, however my point is that if the changes you routinely make can be easily codified that might be the way to go. Is Time Machine enabled? If so you could try to restore the state of your library to some point just before before this became an issue, then take your computer offline before running iTunes. Perhaps it will leave your data alone when you go online again.

tt2