Rubens I wonder if it's to do with action design as well. Perhaps making the key dip shallower requires a complete readjustment and regulation of the whole action including factors like hammer blow distance?
Shallow Keybeds....
Joseph-Fleetwood Perhaps making the key dip shallower requires a complete readjustment and regulation of the whole action including factors like hammer blow distance?
Standard disclaimer because I'm not a piano tech, but this sounds very logical to me, especially given the before/after differences I've felt when a piano has had significant regulation work.
Makes perfect sense and gives me some hope. Now I want to repeat the experiment with the extra regulation after adjusting the dip. If it works I'll send you a bottle of scotch.
16 days later
On an upright, the piano designer can decide on a keystick length without much of a tradeoff of other design parameters. On a grand of a fixed length, using longer keysticks means that the rest of the piano (including soundboard, plate and strings) is shorter.
That is why keysticks tend to be shorter on smaller grands, which in turn is part of why I tend to prefer a full sized upright over a grand shorter than about 6'.