Songs not in expected playlists (SP3-101)
The SweetPea3 looks for two folders that are named exactly "PLAY2" and "PLAY3". Songs in these folders appear
in playlist 2 and playlist 3 respectively. All songs not in these two folders will appear in playlist 1.
There is nothing special about the PLAY2 and PLAY3 folders other than the name. If you accidentally delete one of these folders, simply create a new folder and name it appropriately(PLAY2 or PLAY3)