I would like to open a discussion on piano tuning; the reason is that I would like to be able to tune it myself, and not just for economic reasons. Where is it written that pianists must not know how to tune their own instrument like most musicians? Here in our country (Italy), when talking about piano tuning, it's as if one were talking about a state secret; Italian tuning technicians won't even give you information even if you pay them, and I would even pay for this blessed information. Try searching the internet for sites, YouTube videos, books on the subject; to tell the truth, there are only two (I bought both). The first was written by a certain Dr. Enrico Bongioanni, "Norme per l'accordatura dei pianoforti" [Rules for piano tuning], which is unfeasible for anyone who even wants to try tuning; the second is by Franco and Roberto Bottini, "Accordare il pianoforte" [Tuning the piano], it's not bad but too little—just think, only 30 little pages. If we search the internet for the same topic (tuning piano) in English, the sky is the limit, there is everything.
I hope I have succeeded in some way in opening a discussion on the subject; the floor is open to someone else.