Pianoteq is based on the physical model, offered in Pianoteq 3 and Pianoteq 3 Pro. Pianoteq Play includes the same instruments, sounds and playability. The simpler interface in Pianoteq Play is adapted for musicians who want the convenience of a selection of beautiful instruments for an immediate playing session. With Pianoteq Play you are focusing entirely on your playing. It is not for tweaking settings and parameters.