Arguably 256 AAC is better than 320 MP3. I doubt FLAC files will even upload to iCloud so you probably have to convert them to something like MP3 or AAC first.

Arguably 256 AAC is better than 320 MP3. I doubt FLAC files will even upload to iCloud so you probably have to convert them to something like MP3 or AAC first. That is if you are even seriously considering it.