Key dip is the amount of distance the key travels when it is pressed. This is adjusted by adding or removing punchings at the front rail, or by shimming the keybed. At rest the height of the key is set by adjusting the key height at the balance rail. From this the amount of dip […]

Key height is the height above the key bed that the key is set to best perform the task of transferring the energy of the player to the hammer. This in turn strikes the string, reed or tine. it is essential for proper regulation of a piano because even key height allows all other parts […]