This is one of the most soothing and amazing videos on YouTube. Look at this musical instrument made by hand and played with marble balls.
I want to visit these recycling places, especially the steel recycling plant in Illinois.
Normally these KUKA robot videos are highly saturated and filmed inside pristine, white-walled factories. This one is not like the others. It's filmed inside what looks like a dingy movie set (but it's a real steel factory) and is filmed in a much more cinematic style than the other KUKA videos I've seen. It's kind of nice. Change the music here and this could easily be portrayed as a movie trailer or something.