DJ Zyx Does Cubase, Reason, Rebirth + Controllers Live PA

While searching the Youtube I found this video of DJ Zyx doing a screen capture of some "live" work, perhaps better described as on the fly work, with Rebirth, Reason and Cubase. Quite interesting and I am amazed his computer is not hiccuping under the load. I wish he gave more details though explaining how he set it up to work. Most of the comments appear to be in German.