Ghost playlist

My Clip+ is running in MSC mode.  Under Kubuntu Linux I connect to it and see the expected folders.  At one time I created a folder within Music called Playlists as an experiment and placed in it a playlist called Classical 2. Although the Classical 2 playlist was detected by the Clip+ and showed up in its Playlists list, the playlist was empty.  So I deleted that Playlists folder.  Unfortunately the Classical 2 playlist still shows up on the device even though it isn’t visible anywhere in the drive view when I plug the Clip+ into the laptop.

How can I get rid of it?