Have you subscribed to iTunes Match? I believe there is a bug that can sometimes create hundreds of duplicate empty playlists. I've two scripts which might help you clean up: KillEmptyPlaylists and KillTopLevelPlaylists. This post describes a technique for resetting iTunes Match to stop it happening again. Yo use either script download, then double-click to run.
No I did not turn on IMatch. I don't know how to run your scripts. Please hel[p me. Now I tried to update to Itunes 11 and Itunes locks up everytime it opens.
I have an Ipad, Nano, Iphone and Shuffle and I hate Apple with a passion. Apple products are great, but getting them to do basic simple things can sometimes be a pain in the ***. I will never spend another dollar on an Apple product. I want the flexibility that the other products offer.
But for now I am stuck with Itunes that does not work and tens of thousands of playlists that I did not create.
If you recently updated to iTunes 11, and things were OK before the upgrade, then this approach might help.
Empty/corrupt library after upgrade/crash
Hopefully it's not been too long since you last upgraded iTunes, in fact if you get an empty/incomplete library immediately after upgrading then with the following steps you shouldn't lose a thing or need to do any further housekeeping. In the Previous iTunes Libraries folder should be a number of dated iTunes Library files. Take the most recent of these and copy it into the iTunes folder. Rename iTunes Library.itl as iTunes Library (Corrupt).itl and then rename the restored file as iTunes Library.itl. Start iTunes. Should all be good, bar any recent additions to or deletions from your library.
See iTunes Folder Watch for a tool to catch up with any changes since the backup file was created.
When you get it all working make a backup!
Otherwise follow the links through to the scripts. Read the description to see that they will do something useful, while keeping the scripts you want to keep. You may need to move some into a playlist folder. To use download the script from that page to your computer, then double-click to execute.