How many velocity layers (dynamic range) are there per note?
PIANOTEQ uses all the 127 velocities that the MIDI specification allows, giving you a maximum playability with a superb dynamic sensitivity. Virtual pianos based on sampling technology are usually restricted to at most 16 samples per note which all need to be processed (cross-fading, filtering, etc). The pianist Hugh Sung explains in video tutorial part 1 his observations on this subject.