As a conscientious piano owner, you probably have your piano tuned regularly by a qualified technician. However, you may notice a deterioration of its performance despite your regular tuning. It's important to note that tuning is only the adjustment of
the system of strings and pins that determines the pitch of each string. Your piano also requires a periodic servicing called regulation , which attends to adjustments of the mechanical aspects of the piano to compensate for the effects of wear, the compacting and settling of cloth, felt, and buckskin, as well as dimensional changes in wood and wool parts due to changes in humidity.
While tuning corrects the pitch of your piano, it is only one component of a complete maintenance program. Regulation attends to the touch and uniform responsiveness of your action (the mechanical part of the piano that transfers the motion of the fingers on the keys to the hammers that strike the strings) which is comprised of over 9000 parts! They require adjustment to critical tolerances in order to be able to respond to a pianist's every command. Therefore, regulation also ensures that your instrument is capable of producing a wide dynamic range – a critical factor, particularly in pianissimo passages.
All upright and grand pianos need periodic regulation to perform their best. Frequency of regulation is dependent upon amount of use, exposure to climatic changes, and the instrument's quality, age and condition. New pianos may require regulation in their first year because of settling and compacting of parts sometimes necessitates adjustment.
If your instrument displays a lack of sensitivity or a decreased dynamic range, it is a candidate for regulation. If you notice that the keys are not level (some higher or lower than the rest), the touch is uneven or that keys are sticking, the need for regulation is indicated. However, a sluggish action or deep grooves in the hammers indicate the need for reconditioning or repair.
For more information, or to have a certified technician assess your pianos needs, contact our piano service department (905.881.3400). A representative will be happy to help.