Ok, here you go. I have done the tonal trial, lifting finger storke vs non lifting.
condition of recording: all piano are warm up before i did this recording.

In second interval, I deleted some chair noise by adding silience, but just ignore that and focus on the sound projection.

I would suggest you to turn up the speakers first and listen to it and make your own conclusion and then check the sound wave pitch to detect the actual physical differences.

Have your say, personally, I prefer the sound of NON lifting finger stroke.....
have your say and clear all mysterious....

thanks

The lifting technique sounds stronger, such that there is more force being applied.

This is simple physics: For every action there is an equal and opposite reaction. The more force you apply (by lifting your finger higher and bringing it down faster to keep the rhytm), the more force will be placed on the hammer and string.

So of course it won't sound as good as the "no lifting" technique. The "no lifting" technqiue will produce a more mellow and relaxed tone, something music is famous for--possessing the abilities to relax a person.

Thanks for the recording.

well done Juffa. So far 1/10 is with me. So in a small salon recital, TONAL cotroll can be acheived.
Anyone else.

Th jabbing action from the lifting action to the key gives that harsh sound, mainly from the weight of finger stroke...
Anyone else?

Hi John,
My Austrian piano teacher had a nice analogy for how to produce a 'singing" tone, which was to press with the weight of the finger into the key (not striking) and think of the key as an extension of the finger. Also, there was a circular motion of the hand coming from the wrist depending on the phrasing of that part of the piece. (It's much easier to show this than to explain it in words, but maybe you understand what I mean?)
Mozartiana