Interesting skills (once you get beyond that mask he wears as a hat).
Addendum: Note there is also an element of fakery, in that the"keyboard" doesn't really have any keys, as explained in a New York Times article in 2007 :
All he’s doing is triggering a pre-programmed MIDI sequence. If you look closely, you’ll see that the keyboard doesn’t even have individual keys—only lines painted on a broad touch panel.Double hat tip to reader Mark for noticing the deception and finding the NYT link.
In other words, it doesn’t make any difference what keys his balls hit; each ball strike triggers the next note in the pre-written MIDI file. All the juggler has to do is worry about the rhythm; the rest is automated.