I'd also like to hear more details. I record interviews for later transcription for use in writing books and articles, and the audio recordings wind up in my iTunes files. Some I want to keep for historic purposes. I have no near-term plans for upgrading to Catalina, but it's very disturbing if Apple is deleting audio files that don't fit into their idea of what "music" files should be.After the Catalina update, all of my music in iTunes was gone except for 7 or 8 items from the iTunes store. Otherwise ~32 GB of music gone.
Doesn't matter, because 2 years ago I moved all my music to a Bluesound Vault by re-ripping all of my CD's as flacs.
Is deletion the new standard for user content not purchased from Apple?