Objectively, the concert is a ruckus. But there is a difference between a ruckus made by a young man and a toddler on a homemade instrument with enthusiasm and a ruckus created by a professional musician with nothing to say for no better reason than shock value. He has sat through the latter several times. This, by comparison, is positively pleasant. He keeps an expression of interest as he listens, even if some of the higher notes especially make him blink a couple times.