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.)
Display, create text file listing info of dead tracks
Remove iTunes tracks disassociated from files
Set choice of various number tags of selected tracks incrementally
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags
Set the Plays of selected tracks.
Locates pairs of track entries pointing to the same file