For starters, I think the vast majority of players are FAR more patient than the few here that absolutely CANNOT wait for an official release and official demos. I still have to wonder about how dissatisfied some of us must be with what we currently have, for all this feverish new model speculation and anticipation to be so prevalent...

Secondly (and my Hungarian - is that what it is? - is non-existent) this could quite easily be a demo of a third-party sample set for ANY Korg arranger (or WS that loads the same format) and they are just using the latest model # to avoid convincing people it's for the old one. That Google translation seems to indicate it is an expansion set...

And thirdly, it just once again goes to show, when it comes to guitar samples, it's the PLAYING that makes or breaks it. I am sure that, in 99% of OUR hands here (mine included!) it would sound no better than what we already have.

I am FAR more interested in hearing demos of the PA3X's improved Guitar Mode, that can be used in the style section, not some incredibly gifted guitar emulation on a RH sound that is quite likely a sample load.
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An arranger is just a tool. What matters is what you build with it..!