For macOS 10.10 and later. This script will rename the selected tracks in iTunes with their filenames (minus the extension).
Obviously, files must be local. There is no accounting for track numbers that may prefix the filename.
To remove characters from the beginning of tag text try using the script Remove n Characters From Front or Back.
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Sort purchased tracks into discrete playlists by name or Apple ID
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Change file type to make selected AACs bookmarkable
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Perform search-and-replace on text in your choice of tags
downloaded 2h 15m 24s ago
Set choice of various number tags of selected tracks incrementally
downloaded 2h 15m 32s ago
Append user-entered text to beginning or ending of selected tag of each selected track
downloaded 2h 15m 47s ago
Applet assists with swapping, copying, appending data between track tags