For Beginners: Light Touch Dynamics
The strength with which you press the keys affects the volume and tone of the piano: the harder you press, the louder and more brilliant the sound. For beginners learning to play the piano, a light touch curve can make it easier to get used to the keyboard. In this case, curves 1 or 2 in the graphic would be appropriate. As shown in the curve, you could then achieve loud notes with minimal pressure.
Striking the Keys with Power
For greater control in pianissimo and more dynamic range in forte, select one of the dynamic curves labeled Hard. The curve in the middle represents a linear touch response. This is typically the default setting on digital pianos and reflects the instrument’s standard playing behavior.