Understanding
The Environment + Your Piano
Pianos are complex, mechanical works of art consisting of more than 11,000 parts. Most of these parts are made of organic materials that can change shape or density with the increase or decrease of humidity, including wood, cloth, leather, steel, copper, and composite plastics. So what happens to pianos in an unstable environment?
High Humidity
Indoor humidity exceeding 60% can raise the pitch of the piano, cause the swelling of wood and cloth parts, and even damage the piano’s finish. Areas that are prone to this damage include places near oceans, lakes, swamps, and forests.
Low Humidity
Indoor humidity that dips below 45% can lower the pitch of the piano, cause separation of wood and cloth parts, a cause cracks in the soundboard and finish. Areas that are prone to this damage include places with cold winters, or areas with high altitude.
Rapid Environmental Changes
Aggressive changes in the climate can drastically change piano tone and touch. Areas that are prone to this damage include places with rainy seasonal changes, or homes that are often left open to the environment.