The you tube links to the most amazing synth I've ever seen. Vangelis playing a real time, full throddle Synth Score. I've never seen or heard of these Modules he's using - anyone have a clue about these?
 
https://www.youtube.com/watch?v=4zzkalHmY10

That link is broken (it loses the colon in https:\\) so here's another embedded video for everyone!
 

*Pfft...*  Easy stuff! 
 

It is not a synth but a system.  Called Direct I think.  All those modules are special controllers that have been custom made for him.  The pedals on the ground all connect to it as well.  There is a room full of modules that this thing is actually talking to that are making the sounds.  It is just a very advanced controller.  He wanted the ability to create a lot of music live while the ideas flow.  It is using midi to do all of this too. 
 
There was a smaller piece of commercial hardware which the inventors did put out for a while which did this sort of scaled down but they are very rare to find now. 
 
He did a whole album using this setup and it is called Direct as well. 

Just a joy to watch that. Anyone know what that crazy shorthand was all about? Never seen that before. I also noticed he seems to be using RADAR, as opposed to SONAR. Radar is a dedicated hardware/software system for recording. I know of 2 studios that have gone with this system. Both citing Pro Tools as being too unreliable and 2" tape as being too expensive to operate.

Well, maybe RADAR works above ground better? 

Yes I think he likes RADAR as well because of its relative simplicity and ease of use as a multitrack recording system.  Many have said that the RADAR front end A to D also sounds very very good too.  It has been known to be used in some setups just for the conversion alone and used in conjunction with some DAW's. 
 
The shorthand system he devised is to be able to see what instruments he is going to be addressing.  Quite a good system because of a simple squiggle or marking he knows exactly what instruments he is talking to.  Those boxes he is selecting buttons on are glorified program change senders I guess. The pedals all being continuous controllers as well of course. 
 
The whole concept behind Direct is rather special and unique and the fellows that invented it are very clever.  I did look into it rather deeply at one stage especially the hardware they designed for it.  There is a unit that was released but they are very hard to find now because only a few were made. 

I have seen a picture of the room with the synths in it too.  Now that was serious.  So he likes hardware and the immediacy of it.  Racks of modules and keyboards from all makers.  With quite a few larger mixers in there summing all the individual synths to stems and the stems coming into him in his room on a smaller mixing console.  That way he could balance stems very easily etc.. He has used this setup live a few times too.  I think if you hunt down some of the YouTube videos of various performances he did, then you will find he was using Direct.  Don't you love that name Direct.  It sort of sums it up well.  
 
He uses the RADAR multitrack recording system to instantly record and then he is back into playing. The way the system works enables him to built up the music within the multitrack recording environment. It involves the use of the Zyklus MPS-1 Midi Performance System.
 
https://www.gearslutz.com/board/zyklus/mps-1-midi-performance-system-g14877/
 
The controller is especially designed for him as well as the switch boxes.  He is known not to like computers and has hence developed a system that does not use them.  He can work with others though that can work with computers very effectively. And they would be using DAW's.
 
What I would like to see is the block diagram of the whole setup.  I bet it can be done in software.  They can do everything else. The inventors much have been at least thinking about it, or they should.

That makes a lot more sense if the modules he's hands on with are controllers, the brand name on them is a little hard to make out in the video - but it looks like VC x Audio -  I was assuming that they were integrated sound / sample modules. It looks as though he basically has all sounds live and he's picking instruments simply with patch switching and volume controllers.  Amazing stuff !
 
Thanks for fixing the link Craig B

Jeff Evans
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The shorthand system he devised is to be able to see what instruments he is going to be addressing.  Quite a good system because of a simple squiggle or marking he knows exactly what instruments he is talking to.  Those boxes he is selecting buttons on are glorified program change senders I guess. The pedals all being continuous controllers as well of course. 
...

 
I think it also tells him what to play ... the V probably suggesting a sequence going down at that point and > probably meaning increasing this or that ... and the dots probably mean how much of his fingers go into it, or similar.
 
The schematic, is actually his "score" ... you juts have to look at it differently and work out what the symbols stand for ... but copy that and then go listen to the piece without the visual and only looking at that piece of paper ... in due time, you will be able to break it down.
 
I did this with a painting by Vina White here in the Pacific NW at a psychic show in Seattle in 1987 and Herb Ernst did a magnificent piece off that painting ... which I put in front of him, and simply said that the painting was the score, and the lines could be the staff and the dots were the notes ... and he put together a massive piece about 10 minutes long, that is simply magnanimous and far-out and totally excellent .... and way more progressive and neat than a lot of things around. I sure would have liked to do this to Edgar Froese, Jean Michel Jarre and Mike Oldfield! People that immediately synch into a "concept" of the whole picture and drawing, and analyze it likewise. It's like looking at a painting ... go to the Chicago Art Institute and get blasted by that huge thing at the entrance ... El Greco, if I remember right! Now think keyboards and what to play for each bit and piece. Then go look at Guernica and see what you can decipher ... you'll go crazy, but it will come!
 
You adjust to what you "see", and "want to do" and that schematic helps you know what your hands can do at any time while playing it ... and those pedals ... his feet have EYES?