Dear sucom But horowitz and argerich for example played with extended fingers Thanks
Dear countrymath But natural rest position of hand is flexion .Thanks
dear countrymathbut most pianist advice to play in a relax and no tension position and flexion is the position of our hands when we are sleeping (absolutely no tension.thanks
If you look at it from a pure physical standpoint...Flexed when possible>extendedIf you look at your arm, elbow, wrist, knuckles, fingers, joints, and fingertips, you will find that playing the piano is utilizing a series of levers (known as our arm) in order to push keys and make sounds. Now then, objects FURTHER away from the fulcrum take more force to move than objects CLOSER to the fulcrum. Our fingertips are that object, so it is easier to push a key when the fingertip is closer to the fulcrum (the joint). THUS it's easier to push a key with a curved finger rather than an extended finger. And I personally don't see any benefits with playing with additional discomfort other than perhaps a different color achieved with flat fingers.
The physics is actually rather complex here- it's not a simple lever issue and the mechanics of a standard fulcrum does not strictly apply in a traditional or straightforward way. If the above held up, curling the finger so far as to start with the finger tip just a centimetre away from the knuckle would produce more sound still. Also, the problem with a curved finger is collapse and associated loss of energy transmission. A flat finger cannot collapse back. If a curved finger gives way even a fraction, that can totally compromise energy transfer. Many people resort to severe stiffness for this reason- although it's far simpler to prevent collapse by simply extending the finger out through the action, rather than attempt to immobilise it through fixation.I think a decent pianist ought to experiment plenty with both starting positions and both styles of movement. I don't see any reason to omit either.
Simplifying the physics however, it feels like it takes more force to push a key with a flat finger than it does with a curved finger. Plus curving the hand allows for one of the most fundamental techniques of piano playing: the thumb under technique.
I think the difference is that when a finger extends during the movement of the key (which obviously cannot happen if it already starts extended rather than curved), it actively adds a touch of extra energy in doing so. However, I don't personally feel it takes more force with a flat finger, and if anything I feel it's easier to be confident about extreme actions without the thud of a heavy landing. I'm not sure about the literal mechanical forces involved, but I don't experience any subjective sense of having to "force" anything. There are many pianists who favour the flatter finger for big sonorous sounds.
Hmm.. that's interesting, I suppose it really depends on the pianist. Personally, when I want a big, but sonorous sound (as opposed to harsh) I would start curved, but immediately absorb the impact upon playing, which I find impossible with straight fingers. I feel like more energy goes directly into the key when my fingers are curved. Again, that's just person experience.
I think you should play with extended fingers. You can't play the black keys with flexed fingers. Its too awkward. And if you play the withe keys with flexed fingers and the black with extended, you will be making an unnecessary movement. Another thing: With flexed fingers, when you use your body's weight, the weight will be thrown on the joint of your fingers. This can cause injury and tension. If you play with extended fingers, the weight will be spared between all your hand.
Dear countrymathVery useful response .thank you . I have long and thin fingers are they good for extended position or not?I was selftaught before and at that time I was playing with extended fingers to me it was very comfortable .but my teacher insisted to play with flexed fingers.are long and thin fingers good for extended position ?eg.when I should increase speed.Thanks
I don't think the OP should completely rule out the possibility of flexed fingers, since as Nyiregyhazi pointed out, there's benefits to both.
Fingers should be flexed whenever possible and extended whenever possible. some sections of pieces may require you to extend your fingers to play it comfortably, and vice versa.