I have iTunes match, i just looked on my iMac. I have literally thousands of empty playlists i mean thousand. I can't even tell how many i have because it freezes my iTunes. When i open the music app on my iPhone it now crashes. I tried turning iTunes match off on the computer and iPhone and playlists are still there. If anyone has experience with this let me know. I Have spent hours playing within this issue now and have managed to disable iTunes match on my devices and turn it off for now. This is a huge problem. iTunes freezes when opened on iTunes match en abled computers. There are a lot of users reporting this on the dev forums too.!