My pets only seem to react to music when I play something ****** like Hilary Duff. I definitely think the vibrations from the ground have something to do with it. Linkin Park has a lot of bass in it which might be why your corn reacts. Bass is what really gets the vibrations going (if I'm correct) and so the more the bass, the more vibrations the snake is feeling. That doesn't explain why my pets seem to like the blonde robot though..