Finger Movements

[aindavou]

Hello everyone,
I was stopped at the piano for three long years, stop because had tendinitis (do not worry, its ok now). Well, last month I buy a new Piano, and choose small and simple piece to back to piano studies, per hour I want restart in technic (posture and movements).
Why? Well, my “last” technic was much uncontrolled (I had wrong posture, bad movements and rigid arms). Today, now I just sit at bench and looking for correct posture. After this, feeling my posture stay ok, I come trying a correct finger movement.

A three years ago I use phalanx movement 1,2 and a little 3 phalanx. Use flexors and extensors, but more extensors (movement to remove the finger out the key). Bad, bad... My finger does not attack keys to down but to direction of my body (of course press the key to down to, but the movements are much to pull back.
In this time a teacher said to me use my 1 and 2 phalanx inactive and use just 3 phalanx of finger (using just flexors). Use full finger like just one unique object (“play-unit”). – When back to piano and come trying a new fingers movements I trying it and, well, it’s ok now. I can do it (need more one days to it stay very well).
But I start read the book ‘A téctnica Pianistica: Uma Abordagem Científica’ (the translate is +/- like: The technical Pianistic: An Scientific Approach) de Claudio Richerme. In this book the author say to use all phalanx from finger to press down the key (using just flexors), pull down the key with all phalanx to down (not like a “play-unit”).
(unique link i found: https://www.thefreelibrary.com/The+science+of+a+superior+touch.-a012848493 )

I understand which I need not use the extensors. it seems which this is a very bad movements (it’s hard to remove from my technic, because for long time I use these movements, but I’m achieving this little by little).

But I'm much confusing with movements use. I want do a good posture/movements to can back without health problems in future.

You can tell me what is a good finger movement? What movements you use? How this work? Why you use this movement? Someday you think about this?

I focus on finger movement per hour, because I want fixed with by steps, first posture, after finger… step by step, little by little.

Thx to read. Try help me. (Well, I’m not good with English)
Rafa 

[hmpiano]

If Claudio Richerme is saying you should try and draw the key toward you but not necessarily change the shape of your finger then that's very Suzuki and I agree.

[nyiregyhazi]

Try this post:

https://pianoscience.blogspot.co.uk/2012/07/fingers-core-of-piano-technique-part-i.html

Personally, I don't like anything that causes the finger to slip across the key as a foundation. I'm not saying never do it, but it's too easy for panic to set it. The brain notices the sheer instability that is caused by sliding across the key and wants to clench to stop the wrist getting tugged forwards.

In the diagrams halfway down, I show the extension action that aims very slightly forward. Discovering this action has made a world of difference to my technique. Rationally, any action that does not extend out the length of the finger must either slip across the key or drag the knuckle forward. I don't think dependence on either of those makes for a good foundation. When the finger lengthens a little, everything stays stable without having to be tightly locked into place.