Not a single live instrument is played on that. The guitar is a VST plug-in, one that does for guitars what Toontrack and others have done for drum samplers.
Shit official demo (actually, I watched more than two seconds. it's not shit):
[VIDEO]http://www.youtube.com/watch?v=BqGJ8y67SU8]YouTube - Prominy LPC Library Demo - Surreal![/VIDEO]
Better user demo:
[VIDEO]http://www.youtube.com/watch?v=rNyjmHmtVHA]YouTube - Prominy SC Eletric Guitar Demo - Barricade[/VIDEO]
Ok, that's just...wrong.