Operation confirmed. This is a listing for the main unit only. There are no noticeable scratches. The system is the latest version and has been reset to factory settings. It sounds like this: https://www.youtube.com/watch?v=9U92JQBRBKk https://www.youtube.com/watch?v=wlxj7lk2K4c It sounds cool when you add FM sounds or reverb to make it richer. volca fm DIGITAL FM SYNTHESIZER #Korg #VOLCAFM