John Matthias and Jay Auborn join forces again for a new album. Ghost Notes boldly explores human- robotic collaboration through mini electronic symphonies. The ghost in Ghost Notes refers to a robot drummer, although its appearance is less corporeal than it might sound. In fact, it employs quite crude technology not too different from your set of automatic car keys. John Matthias and Jay Auborn used solenoid magnets to convert audio signals sent from their computer into voltages that could fire hammers that would in turn hit a real drum kit.