This script will export then re-import the artwork data of the selected tracks.
NOTE: this script cannot handle processing more than about an album's worth of tracks per launch due to the way iTunes manages the graphics data.
For OS X 10.6 and better only.
Search for lyric sites with Google using info from the current or selected track
Perform search-and-replace on text in your choice of tags
Remove iTunes tracks disassociated from files
Display, create text file listing info of dead tracks
Download any or all available subscribed Podcast episodes not yet downloaded
Create text file listing tracks common to and exclusive to two playlists