Hammer... why the change to Korg, when the styles issue is a well known, long time design decision? Korg have always been probably the least well supported for overall sheer number of available good styles (out of the Big 3) other than Middle Eastern, and have always been rather more modern in focus and sound. Smooth modern jazz? Probably the best there is... Big band? Not so much..!

I am just surprised, that YOU are surprised! Were you expecting anything radically new?
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An arranger is just a tool. What matters is what you build with it..!