"Playlist notes" are a special class of playlist item. They are designed to help you customize the playlist printout, and only appear on the playlist summary page. They save and load with the playlist file. Notes do not print with the songs, and they do not project.
Notes can be up to 3 lines long, and contain any formatting you wish to use.
To add a playlist note, select that option from the Add menu of the playlist.
Click any item on this image for details.
When the playlist is printed, this is what the playlist summary will look like: