A piano fares best in 35-45% humidity, but up to 55% is acceptable - so long as it's constant. Fluctuating humidity causes wood - including the ever-important soundboard - to swell and release, and this can lead to tuning issues, changes in ... (continue reading)
Image: Robb Debenport/Getty Images
Comments
I typically tell my clients as a piano tuner to keep the environment where the piano is located around 40 percent humidity. 35-50 is ideal.