In reply to:

When you are deleting playlists, there's a checkbox to delete the song as well, right?

That's not how it works in JEmplode, IIRC. There's a checkbox for "Remove completely" which kills all references to the playlist or tune, but I believe that the children will be orphaned when you remove their last containing playlist.

You can do a search on refs=0 to find your orphans.
_________________________
Toby Speight
030103016 (80GB Mk2a, blue)
030102806 (0GB Mk2a, blue)