Mute

Bravo!!!!! I agree!!!!!! The neighbors hear it just the same....the one who doesn't hear is the pianist, who ruins their touch and gets lost in an incorrect perception of the sound!!!!!!!

Now, it must be said that in a vertical piano, the hammer is set to trigger at exactly 3 mm to allow, with the practice pedal (sordina) inserted, to still have 1 mm of distance from the string.

By removing the practice pedal, a more precise regulation is obtained (2-1.5 mm from the string). Furthermore, it does not prevent the expansion of the sound after the hammer impact (even if only partially)... In short, take it off!!!

Hi everyone! Reading this discussion, something occurred to me that isn't quite clear yet:

after adjusting the escapement (sorry Paolo, but in English is it called let-off?) I happened to notice that at pianissimo, without trying to press the key to the bottom, the hammer strikes the string twice, making a sound like "blen blen". On the upright, I noticed that by pulling the let-off lever just a tiny bit, it seems to work better; on the grand, I can't figure it out!

How is it usually done in these cases?

Thanks a lot

Lorenzo

Hi Lorenzo, while waiting for Paolo, I will try to give you an answer.

As we know, every time we press a key, a series of mechanical events must take place and these events must occur at a precise moment; when one of these elements occurs late or early, the piano is out of regulation.

The test to see if everything is correct in the regulation is in the mezzo-forte stroke and not in the pianissimo.

Anyway, a double-strike note can be corrected. The causes of a note that strikes 2 times can be the escapement regulated too close to the strings, or an insufficient hammer drop, or the key has insufficient let-off, or the repetition spring is too heavily loaded.

Pianoaccordatore has already answered you well. Tuning a piano in an "optimal" way is not so easy or obvious. One would even need to see which "gestures" the pianist favors and what repertoire they usually perform.

In a standard regulation, however, there must be a correct ratio between key dip (key core) and hammer-string distance. Then it is right to regulate the hammer with its own escapement and its fall, as indicated by the Manufacturer's specifications. The repetition spring is also very important, as is the check (paramartello). In short, in your case, I would start checking in the succession indicated above.... It is clear that in Lorenzo's case it is a grand piano, whereas, in Vitrus's case, it is an upright.

P.S. in a grand piano, it is also very important to check the pre-regulation (correct alignment of the escapement upright relative to the roller and its level relative to the repetition lever.....)

Ok thanks! So there isn't much possibility for touch customization! The factory adjustments are sacrosanct to say the least. I don't understand one other thing: why is the test only done with mezzo-forte?

Ps.: for Paolo, I also have the upright and in that case, by pulling the strap slightly, you eliminate this problem that I noticed occurs when you go to delay the escapement!

Thanks for the patience

Lorenzo

pianoexpert wrote:

Very good!!!!! I agree!!!!!! The neighbors hear it just the same.... the one who doesn't hear is the pianist, who ruins their touch and gets lost in an incorrect perception of the sound!!!!!!!

Now, it must be said that in a vertical piano, the hammer is set to snap at exactly 3 mm to allow, with the practice pedal inserted, to still have 1 mm of distance from the string.

By removing the practice pedal, a more precise regulation is obtained (1.5-2 mm from the string). Furthermore, it does not prevent the expansion of the sound after the hammer impact (even if only partially)... In short, remove it!!!

Thank you pianoexpert, when the technician comes for the tuning of the pf I will proceed with the removal of the practice pedal.

Good morning, a question: wanting to remove the mute, when I bring the hammers closer to the strings by reducing the distance from 3mm to 1.5 \ 1 mm by acting on the pilot, they lift from the rest bar and remain suspended. How can this problem be overcome? Thank you

No no! From the pilot, you must obtain the grip between the key and the rail, without play, but at the same time leaving the upright free to move: in short, a matter of sensitivity. The escapement is adjusted through another small button.