Just yesterday, Amazon launched its new Amazon Music Unlimited music streaming service, striking at the very heart of Spotify’s and Apple Music’s business. Now Apple is biting back, sort of. It hasn’t launched a new service or subscription tier. Instead, it launched a new video ad that, while taking you through the new features of both app and service that arrived with iOS 10, also reminds you of the things that you can do on Apple Music that you still can’t on Amazon. Or elsewhere for that matter.