This fulcrum, or tipping point, is the balance rail.
Key leveling tool AND/OR 4-foot level or long metal straightedgeīefore we dive into the repair process, you'll need to assess whether you'll be leveling to the front rail or the balance rail.īy definition, your piano key is a simple machine: a lever that is balanced on a fulcrum. See those wonky keys? You could fix that yourself! Difficulty: Intermediate Materials Required: Set aside plenty of time if you attempt DIY key leveling. but even with a key leveling tool, this job requires so much trial and error, precision, and time, completing the job can be quite challenging. The difficulty of this job averages out to "intermediate." Technically, it's as simple as lifting a key off its pin, inserting a paper shim, and putting the key back. The cure? Add paper punchings underneath the felt to prop up the key and bring the instrument back up to its former glory. Sound is altered, too, because the distance each key needs to travel to strike the hammer will not be consistent. It can feel spongy, wobbly, or just "off," making it less pleasant or even trickier to play. It's an aesthetic issue, true, but when the keys are left out of whack, play can be affected. Over time, the material loses its integrity and the keys settle out of alignment. If you play your piano a lot (or not!) you may notice that the felt holding up your piano keys has compressed. Uneven keys are an unsightly side effect of a well-loved piano.
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