What score is that? Certainly not the orchestral score from the Kino release. It's really unsatisfactory, IMHO. There is no buildup to the activation of the robot, just a series of effects that don't lead anywhere.
But thanks for your comments on this wonderful film. Silent films can indeed be daunting. But if seen on a large screen with good live music, with an audience, it's an entirely different experience. If you are located somewhere where you have this possibility, I urge you to give it a try!