The eveness of the height of the balance is very important. I was instructed to leave a little arch in the middle, but was motly on vertical pianos, then, this is a good method to anticipate the wear. For grands, I respect now the dimensions given by the factory, ity is up to the tech to add very thin papers from time to time to level the keys . On Steinway, crown is necessary because of the keybed, so having that curve does not mean that the attack angle of the keys differ in the middle of the keyboard. But indded I prefer a key level that "tend " to be higher in the middle than the opposite. Best Regards, and yes, my curved light rule is flat on the other side ! Isaac OLEG Entretien et réparation de pianos. PianoTech 17 rue de Choisy 94400 VITRY sur SEINE FRANCE tel : 033 01 47 18 06 98 fax : 033 01 47 18 06 90 cell: 06 60 42 58 77 > -----Message d'origine----- > De : pianotech-bounces@ptg.org > [mailto:pianotech-bounces@ptg.org]De la > part de Cy Shuster > Envoyé : samedi 18 octobre 2003 23:23 > À : Pianotech > Objet : Re: Steinway D key levelling (Hamburg model) > > > Speaking of key leveling in general, is it better to crown > the middle by a > few mm, or to leave it straight? > > If it's bad to be depressed in the middle after a long time > of use (years?), > isn't it also bad to have it crowned for a few years, until > it gets played > flat? > > That's a great tip about putting the weights on in front of > the backchecks. > > --Cy Shuster-- > Rochester, MN > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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