OS X 10.8 or later. Append the same user-entered text to the beginning or ending of the existing text in the chosen tag (Song Name, Artist, Album Artist, Album, Composer, Comments, Genre, Grouping or Show Name, and their Sort siblings) in each selected track.
Preview each track as it will appear after applying the entered text.
Set year of selected tracks to their release date's year (if available)
Remove iTunes tracks disassociated from files
Change video kind and video related tags of selected video tracks
Set choice of various number tags of selected tracks incrementally
Displays files in iTunes Media folder not in iTunes track library
Two scripts copy text from clipboard to current or single selected track's lyrics tag