Change the case of the selected iTunes track names to "sentence case": all lowercase with the initial letter uppercase. For example, "L'effet Que Tu Me Fais" could become "L'effet que tu me fais", and "Comme D'Habitude" becomes "Comme d'habitude". This is customary in many languages.
(Note: In order to launch this PowerPC-era script on an Intel machine, it must first be opened and then saved using AppleScript Editor, which is located in your /Applications/Utilities/ folder. More information is here.)
Play through each track in a playlist at your set interval
Export files of selected tracks into Album folders
App displays files in iTunes Music folder which are not in iTunes library
App displays files in iTunes Media folder which are not in iTunes library
Sort purchased tracks into discrete playlists by name or account ID
Change the settings of hidden iTunes preferences