Firstly, an especially cool, stoic performance.

Clickety-clack it goes. The sound makes me shiver, as if I'm being made to listen to the sound of a "phenomenon" occurring then and there. Wondering what it could be and eyeing the stage, I see a laptop on a board, and above that, a wooden board with a small iron rod dancing on it like crazy. The sound of this iron-rod dance is captured not by a normal microphone that only picks up aerial vibrations, but instead a contact-microphone that records solid vibrations.