Felt Timbre

There... just like that, next time we'll change them!!!!!!!!! I don't agree with how they were shaved. It doesn't make us feel, in fact, how they sound. Iron, sometimes, can be used, but with caution on the highs. I had already seen such a video.

The operations illustrated in the video are not at all orthodox for any type of piano.

The hammers are from an American Steinway & Sons piano which, in the factory, are hardened with specific acrylic substances (Acrylic copolymer); therefore, to succeed in softening the felt without the aid of needles, steam is used.

The shaving of the felt must be done with the hammers positioned at a height just above their contact point with the strings; otherwise, the coplanarity of the hammer tips with the strings cannot match, and the sound becomes shrill and metallic.

Pioneer

I agree. Voicing is a delicate matter. Perhaps a good hammer set, well-constructed... could even save one from voicing......

Voicing can change the characteristic of the hammers and their sound. Today we have highly specialized manufacturers who provide hammer sets that are almost perfect in uniformity. It's almost better not to voice. What do you say, Pioniere?

I agree with you! In fact, years ago a similar scraping was also done on my piano and since then the sound has been ruined. I will send you the photos later, Paolo, as I already promised you; at least you can tell me. These are operations that must be done with great competence and skill, otherwise...... I know that Americans also used steam for cleaning and softening, but...... I don't know whether to rely on certain techniques.