Graded Hammer Standard weighted action has a heavier touch in the low end and lighter touch in the high end, great for the aspiring pianist. * Meticulously sampled from Yamaha"s acclaimed CFIIIS concert grand, the Pure CF Sound Engine provides the tone of a 9" concert grand piano. * Continuous or half-damper pedal control allows continuously increasing amounts of note sustain, from slight to full, as you depress the sustain pedal. * Using a special design and position within the instrument, the Acoustic Optimizer physically adjusts the acoustical flow, which controls resonances and enriches the overall sound. * Use the built-in, 2-track song recorder to practice one hand at a time or capture that next top-10 hit single!