I recently bought iTunes match and have been enjoying it. 15,000 songs available on my iPhone. Today, I open up my iTunes on my laptop and see that most of my music is gone. 10,000 songs missing! And iTunes match isn't even on anymore. I just turned iTunes match on on my computer and it's going through rematching everything. What's going on?! UPDATE: Matching process is over, and now it shows all 15,000 songs. None of them are downloaded though. No idea what happened, because I definitely didn't go through and delete 10,000 songs.