I can't play the video, but I recently have seen some social media stuff by Mutter where she seems like some crazy John Williams fangirl.
> From this summer in Tanglewood, with Anne-Sophie Mutter. Take the time to
> watch it, because I have rarely seen JW this extroverted!
> This guy turns 90 next February? He has more energy than me, and I'm less
> than half his age.
> And he lifts weights. Something else I don't do.