Interesting playing doesn't necessarily equal fast playing.
So, with that preface I suggest that you play "up". Instead of thinking down for each sixteenth, think up for lighter playing. Legato will be an illusion you create. The motion would be as if you pushed a piece of paper across a table to your friend (without using your arm, only fingers). See how your fingers kinda flick upwards?
Move fast = louder sound. Move slower = softer sound. ...If you want a true physical legato, I would suggest practicing the 3,4, and 5 fingers by themselves - only the sixteenths. ... Make sure you are playing each note to the keybed. If it becomes too loud, refer to my earlier comments.
Listen to recordings and consider which sound they are creating and which technique they are using to achieve it.
Hehe, this took me a long, long time to learn.
But the score is full of sempre legato -markings. Most of my teachers say that when a passage should be played legato, it should be a "physical" legato (even when using the sustain pedale). What would Chopin say?
- The key must be pressed down after all. Will this happen during the flick motion or do you first press the key and then immediately flick? Should the key go all the way down to the keybed? - Is there a name for this technique so that I could search for more information on the net?
I tried practicing so that I start pressing the next key earlier. It will give me time to press the key slower.
No offense, but if you learned this lesson, then why did you specifically mentioning speed as a problem on a piano forum? Just keeping it real...
It doesn't matter who said what or how many agree with the other guy, or when Harry met Sally, or whatever. What you have to do is challenge everything you are being told by everyone, including your teachers' thoughts and my suggestions, and come up with your own solutions.
You assume that my suggestion is antithetical to the markings in the music.
And no, the key is not sent to bed.
when you practice slowly, use what my teacher calls "smart fingers" [i dunno she's russian] and press down, and almost lightly hit it but with force.
[wow that makes no sense]