There are a few places where the ball impacts don’t seem to correspond to the notes played.
I don’t have perfect pitch or anything, but when the melody suddenly shifts an octave but the ball stream stays in the same narrow area on the keyboard, somethings wrong.
From the brief views of the keyboard, you can see that an octave spacing is several (3-4) “ball-widths” wide.
I tentatively call fake, or at least “enhanced”.
He sure as shit is a fast juggler, though!
Called that one right.. It’s a bounce piano. All the juggler has to do is keep a tempo, other than that it’s all gravy, you can even play it with one ball. A better view of this can be found here If you watch carefully, you can see the same keys making different notes. I’m not putting down the obvious talent of the people doing this, just showing the ‘man behind the curtain’.