Great Big Story talked to Movie Composer Mark Korvan about how he didn't like the generic digital music he'd hear when creating horror movie soundtracks. So he got together with his friend Tony Duggan-Smith to build him an instrument that could create horror sounds organically. What he got is the "Apprehension Engine" and it's just as creepy and cool as you'd expect. You might be able to build one yourself to play in real life scary situations. Such as a dark campground, a graveyard, or the DMV! Check out the full video below.