How to reset iTunes Match, How to delete duplicate playlists
There are some very helpful iTunes Match tips in the second half of this Wired article: I restored my up-to-date offline library and left this machine without Match enabled for a few days while I looked up how you reset your iTunes Match account. And that’s where the fundamental problem with the service rears its head: you cannot reset it. I contacted Apple to find out if this was true, and it is. Fact of the matter, I was told,