I was notified that there was somewhat of a “smile” in the keyboard on this Yamaha P22 in 19M at the Provo Missionary Training Center. I was able to take care of it by using a 3′ piece of aluminum for leveling, and inserting appropriate sized center rail punchings underneath the keys to yield a uniform height.
Before
After
Before
After
Before
After
Another piano saved! 🙂
