The KB37 is merely a controller. It does not in and of itself, create sound. The sound comes from whatever program you're using on your computer. the KB37 just plays (controls) the sound the program makes. So you need to create the sound on your computer and not from the KB37. It can't. Does this make sense? You can also hook it up to sound modules and control them but I believe you're talking about having it hooked up to your computer.