10 years ago by
A Pianist
I have been experimenting with the key rebound for some time now.I think it depends mostly on our ability to be able to free ourselves and align our skeleton correctly,following and using some uparm muscles to help the hand to be lifted,most people i think simply remain on the keys without ever sensing how the key can help them rebound.I strongly believe the quality of the piano mechanism plays an important part on the effect.
I noticed this when i practicted some repeated octaves on a very good quality steinway on the bass region,the problem of speed was solved for me mainly because i could feel the trampoline effect on my playing mechanism,on my piano home it was much more difficult to obtain such speed and clarity because the keys didnt speed my hand as much as that piano did.
However the slightest tension and you can simply forget any such effect ,if you bind up the speed is lost and tension is built quickly.
Maybe this has to do with the alignment of our apparatus?Imagine that you are running on a wooden roadpath that is only 20 cm in width ,if you run i simply imagine that your feet may not even be on that imagenery small narrowed road,but rather on the edges and if there was chaos below you would simply fell down.
Trasfer this to piano,any time the fingers play fast and are not properly aligned, probably ulna radius,as well as the bones may be somewhat like your feet on the edges of a narrow road when running.It takes skill to run on such a narrow road and be on the surface area of that road and not on the edges and a slight move could bring you down.
This could built tension very fast,so in slow tempo i think we can properly learn how to align ulna,radius as the whole skeleton to be correctly aligned,now this does not mean always standing on the keys,as standing has a tendency to bind up and lose speed,but rather the time the boney fingers touch the key they are not hitting so that half finger is aligned where the other tiny part is misaligned and tensed but rather properly touching the key surface.
I wonder how many people actually try to feel what area of the fingertip is in active touch of the keys,is it the bone that is touching?The flesh meat area or something else?How much rotation happens when we use the key as a trompoline?In a real trompoline we aim for the center to have proper take off,then why in the piano many people hit the keys on the edges and fingers slide?
I believe these are some good thoughts one should have when he tries to accelerate and use the piano as a trompoline.