2009/10/12 david <gnome@hawaii.rr.com>

nescivi wrote:
> On Sunday 11 October 2009 13:36:55 Carlos Sanchiavedraz wrote:
>> Hi dear folks.
>>

[...]

I had a thought re keyboards (particularly the keys themselves). Why
can't the surface of a key be a touchpad-like surface sensitive to
pressure and even movement? So, for example, you could play a violin
note, hold it, and use finger pressure and movement on the key surface
itself to do vibrato the way a violinist would? That would go a long
ways toward bringing human expressiveness back into playing the sounds
of such expressive instruments as strings and woodwinds.

Yes, that would be great. But AFAIK the circuit inside keyboards just cares about keypresses; nothing about pressure or velocity, although maybe something could be hacked given the present keyswitches, electrical contacts (or I think capacitors on old ones), scan codes and other stuff.
Do you know any work about that?