go to www.korg-lab.com
there you find all you want to know about chemistry 1-2-3 + audio demo.s
i am a user of chemistry 1-2-3 and those are sound combi collection to the keyboard korg karma + triton too
they have been developed by stephen kay scott raposa and EJ2 all very good in sound making and do the combi to a musical tool for us who play keyboard:))
i love my collections. i use them a lot too:) if other quistions welcome to ask me.