The controls are emulated. There are something like 7 levels of fingering force you select with 7 different buttons which are levels of strength. You can somewhat easily estimate which one to choose after you have practiced a few times but there is still a "gambling" element to the landing spot, like choosing a 4 strength might land on 1 of 3 possibilities which are next to each other on the grid. So like a 1 strength might land on spots 1-3, a 2 strength might land on spots 4-6 and so on. There could also be some timing aspect to it like when you press the button determines the strength of that level, like early 2 press makes a 4 final level, later 2 press a 5 etc.