The Playlist Editor allows you to change what musics are played on different levels.
To activate the playlist editor: Click the Playlist Editor button on the SHWP-II Editor toolbar (it looks like musical notes).
To edit the playlist, simply click the up or down buttons next to a level's name. The number in the textbox will change, reflecting its new song number. Note that if you quit the editor before saving the changes, a warning will not appear. So make sure you save your changes by clicking the SAVE button on the toolbar (it looks like a disk).