I am a published music producer, and I would suggest pursuing legal action against apple if their policy has resulted in a person's self-created music files being copied and manipulated. This is copyright infringement, and would be damaging to any artist - especially if the served self-created tracks are compressed significantly prior to their storage in apple's servers. I know that my self-created music files represent years of my life, and for those files to be permanently damaged would be a huge blow.