I discovered something pretty cool the other day that I'd like to share. The professionals have probably seen this technique before, but some of my fellow amateurs may not have. I was trying to decide how to use the sustain pedal on the deceptive cadence (Bm7 to C) at the end of measure 20 and the start of measure 21 in the Chopin Em prelude (op. 28, no. 4). I found that what I liked most was to play the Bm7 chord without the pedal, play the C chord without the pedal, wait long enough to let the listener hear the C chord without the pedal, and then press down on the pedal while the C chord was still sounding. I would strike the keys only twice but produce three different sounds, as the other strings would start to vibrate sympathetically with the C chord after I activated the pedal. The final sound was a hollow/echo-ish sound that I really liked.
I'm not sure of the practicality of such a technique since it seems like it almost creates another note. Which most certainly is going against the score. My main argument is, it alters the rhythm.
Is that what the OP is stating however? It seems that he likes the "echo" effect that putting down the pedal in the middle of a note/chord creates. Which is different from "catching" notes to play the next
I can't say I'm completely familiar with different timings of putting back the pedal; mostly I've just been making full advantage of going between quarter length, half length, and 1/8th pedals and how quickly I move between them. However, I was just wondering whether that technique takes into account the natural decay of the sound? The piano is incapable of "warming" up to a sound like a violin, voice, or wind instrument can (through the use of vibrato) and adding resonance seems like an attempt at this. I guess it does change the quality of the sound depending on how you put it back, delayed or not but Physics states that the sound cannot get any more intense once we've played the note (conservation of energy).
I'm with werq. I feel that nyiregyhazi simply is going Joe Benowitz on us. Given the description from the OP, it's pretty clear he is going for what I'll term "amateur effects" rather than mature artistic pedaling. In other cases, of course, Nyiregyhazi is dead on.
well judging from the OP's words, he "activated" pedal indicating that he sees the pedal as an on/off switch. In other words the "straight up straight down approach." On the other hand, I could be wrong. Eh where is the OP when you need him to clarify something.
And you said that all good pianists depress the pedal ALWAYS after, but if there is a rest before you play the note, can't you create a much more resonant sound if you depress the pedal before the note/chord?