The difference between a footpedal and the Dynamic Arranger was night and day, though... The footpedal only brings the VOLUME of the Style Parts up or down. Dynamic Arranger adjusted the VELOCITIES, so they moved into different areas of sound, rather than the same sound simply louder.

Makes you wonder what's good on the BK9 that no-one will ever know about (and will get dropped for the next arranger series!)...