tuning

One must see in which area the hammer has been pricked. Every area of the hammer expresses various sound intensities, from ff to pp. Now, by exceeding the voicing and in incorrect or too deep areas, an irreversible status can be caused. One can try to re-stretch with a hot iron the hammers that sound too dull and/or even try to impregnate them... but the result is not guaranteed. Above all, intervening by pricking too much at the apex of the hammer means "killing the sound". In my video tutorials, I talk about and show these areas. In any case, voicing is an intervention for experts. It has nothing to do with "softening". One must proceed with extreme caution.!!!!!

thank you very much maestro for the advice,

anyway I noticed that by playing it, it is reopening, perhaps the intervention was superficial...I can't say...more than anything in this period, as soon as the temperature begins to rise my sound changes color, it becomes harsher and more metallic and every year I despair, I would like to understand if it is a normal thing or if it is my piano acting up.

thank you

Undoubtedly, variations in relative humidity greatly affect the timbre. One must check the condition of the hammers, especially in the treble. When they are heavily grooved, the sound becomes harsh, and it is also necessary to check that the hammer does not wobble at fortissimo. If this occurs due to center pins being too loose, it would cause a significant decrease in sound intensity upon impact. The wobbling, that is, favors the displacement of the grooves from the strings, causing the hammer to impact, partially, on a softer part. In a grand piano, one must check the compactness of the hammers, especially in the treble, by tapping them on the head or stretching them slightly and then retuning and recompacting them. During every tuning, the technician will take care to check all this while AVOIDING shaving and "rounding the hammers". Shaving can be performed once, in my opinion, and no more than once. The original shape of the hammer must be preserved. It changes the weight and the "geometry" of the action. Therefore, any eventual shaving must be minor. It will then be more appropriate, after a certain period, to replace the hammer rail/set.

I thank you again for your availability and precious advice.

I have watched your video tutorials more and more times; they have been extremely interesting and generous.

If you should ever come to Sicily, between Ragusa and Catania, I would be pleased to meet you in person and show you and let you play my pianos.

Thank you again

Vincenzo

ps obviously I will disturb you again for more advice

Thank you and thank you for the invitation. Do not hesitate to ask. It is a reason for research and deepening for me to be able to answer all of you.