i also read a book that mentioned that the piano hammer action is designed to let the hammer fall back into its initial position as fast as possible. Thususing force is no use anyway. Forte apparently is generated by the speedwith which you press the respective key.this forte-business is very difficult and it may not help that i only use a digital piano...
anyway. here is another question about finger-weight. i have noticed thatwhen trying out a new piece, bar, etc. my fingers are very heavy on the keys; especially when i have to hold one key with one finger and moveother fingers of the same hand.
It's all physics my friend.
it's not generated b y the speed with which you press the key so much as the amount of weight that's behind it.
I can't say anything specifically, other than remember, it's not finger weight, its arm weight. You have alot of structural and muscular support in your torso and arms.. That should be the core of your playing mechanism with the fingers only as small extensions/feelers. If you have trouble holding your ring finger down while you play with your thumb and index finger, think about having more weight on the right side of your hand. Again, face to face demonstrations with a good teacher is essential for this stuff.. I still get corrected in lessons.