This script will copy the Artist tag to the Album Artist tag of the selected tracks.
Sort purchased tracks into discrete playlists by name or account ID
Perform search-and-replace on text in your choice of tags
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
Batch merge and/or delete playlists
Renumber order of selected tracks