Key spacing is a part of keyboard regulation of acoustic and electric pianos. It is the process of adjusting the key so they are even in distance from each other. This applies to all keys but is more noticeable in the white keys. For acoustic pianos, Rhodes, and Wurlitzer pianos, key spacing forms one of […]

Side play refers to the side-to-side movement, rocking, or ‘wiggle’ that occurs on keys when the key bushings have loosened over time. Adjusting it is a part of keyboard regulation along with key spacing, key squaring, and key height and key dip adjustment. On new pianos there should be very little side play of the […]