samd shown me that :
Ok it is well done .
But I saw that below in real in Lyon ,
it was very impressive
And it was in 1993 !!!
artists are robbed , we all know , LOOL
http://www.fondation-langlois.org/html/e/video.php?NumObjet=12794
other link with sound too
http://replace.tv/index.php/watch?task=videodirectlink&id=9