1) How good is TuneUp to automatically organise my iTunes library? Does it work with the latest version of iTunes 11? Are there similar alternatives? 2) When I select a track and then press ⌘I, there are two fields in Track Number and Disc Number (# of #). Now, if I create a smart playlist with the rule Disc Number or Track Number is 0, iTunes will group all the tracks whose first field is empty. However, I want to group all the tracks whose second field is empty, no matter if the first one is filled or not. So for instance, I want to detect all the tracks with the following metadata, Disc Number: 1 of [empty]. How to do so? 3) I want to detect all the tracks that contain album artwork with a rectangular form (for example 600x500, 300x301... basically anything that is not a square). Is there a way to build a script for that?