As humidity goes up in Dallas around the first of May, a soundboard swells, increasing its crowned shape and stretching the piano’s strings to a higher pitch. During dry times, usually in midsummer, the soundboard flattens out, lowering tension on the strings and causing the pitch to drop (or go flat). Unfortunately, the strings don’t change pitch equally. As the soundboard and bridges expand and contract with the weather changes, every piano is constantly going out of tune!
For this reason, pianos should be tuned at least once a year even if no one is playing the piano. In this way, the parts of the piano remain correctly aligned, preserving not only the beautiful tone but increasing the life of the piano by preserving the structural integrity of the instrument.
Trying to save money by putting off needed tunings merely postpones a nominal expense until it grows into a much larger expense. The longer you wait between tuning, the flatter the string tension. This will increase the risk of string breakage during tuning because the strings will require more dramatic increases in torque to pull them “up” to standard pitch.
Pianos are designed to bring you a lifetime of musical enjoyment. With the proper care and maintenance, your piano will continue to give you the joy that comes with making memories.