>it would require a lot more force to depress a piano key 55cN is a little on the high side for force needed to depress a piano key ("touchweight"). But the pi

>it would require a lot more force to depress a piano key 55cN is a little on the high side for force needed to depress a piano key ("touchweight"). But the piano is velocity sensitive, and pressing with the minimum force won't get you any sound. Playing loud notes takes substantially more force.