I will probably have to head over to a piano forum, but BBI is often a good initial resource. I have two hollow body guitars, and I use the D'Addario two-way humidification system which works great according to a hygrometer in the case. I would like to find a similar solution for my daughter's piano. The humidity near the piano has been a little low during this cold weather. The hygrometer on the piano is running in the 25% to 33% range over the course of the day recently. The piano is a 1991 Baldwin Acrosonic console. Do you guys worry about humidity, and if so, what do you do to control it? I would rather not use a whole room humidifier as I heard they can lead to condensation in the house and mold.