Traditional Culture Encyclopedia - Weather forecast - Why did Helen's piano go out of tune only a few days after it was tuned?

Why did Helen's piano go out of tune only a few days after it was tuned?

It's also related to the weather. It's rainy season recently, and the air is humid. Piano is made of wood, which is easy to absorb moisture and deform, leading to the sound out of tune. After the rainy season, water evaporation will naturally get better. Therefore, it is not recommended to tune before the rainy season. Andhadhun told me this when I was tuning the piano. Please adopt them! ! )