This control determines how much the velocity of incoming notes affects the dynamics of the Arpeggiator pattern. At maximum setting, keyboard velocity overrides all of the velocity settings in the Arpeggiator’s steps. As the setting gets closer to minimum, the velocity values of each step will determine the dynamics of the Arpeggiator pattern. Generally a setting of 50% is a good balance, since it allows the incoming MIDI velocity to interact with the dynamics of the pattern.