Claudiu,
I am listening to the songs right now: I don't think that you will ever be able to play this kind of music with a VA76 or another arranger keyboard, for that matter. This music requires a lot of sequencing and also a few synthesizers, maybe even old analogic ones.
(Now, please, don't start asking me what "sequencing" does mean...)
Frankly, I think that you are on the wrong Forum, and also that -before asking all the questions you ask- should do a little more "homework": study music, play songs, study how things like sequencers work, etc
There is no substitute for (hard) work... sorry!