One MAJOR mystery feature that stands out in the new PSR-SX600 is the 'Unison & Accent" feature. I think there's more than simple fill-ins that can be done now in SX600 - something that is really new to arranger keyboards as far as I am aware.
Very curious to know how this works. According to my understanding, if you simply hit keys harder, the style will generate some drum rolls/crash cymbals (apart from regular fill-ins), to add more expression/realism in performance. Amazing!
And looking at Yamaha's history, I think that SX700, SX900, and Genos, too, may get this feature via a firmware update. Exciting!
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