Les perles de Youtube

 Performance impressionante mais là.....

Gros fake surtout! Le rythme est bien calé, mais les notes entendues ne correspondent pas...

L'explication probable : 

"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.

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."