If piano is tuned regularly, why do we need to have it regulated?

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, all vital to making each performance pleasurable. In addition, regulation ensures that your instrument is capable of producing a wide dynamic range -- a critical factor, particularly in pianissimo passages.

Music is one of the most complex vehicles for expression. Its beauty is reliant upon personal dynamics and tempi. These changes require extremely fine adjustments to respond to the pianist's nuances and subtle shadings. A smooth, even response throughout the entire range of the keyboard and an extremely quick action capable of playing rapid passages and repeated notes evenly is essential. Outstanding response is essential for a pianist to create an outstanding performance.

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Finish Care | Piano Tuning And Repair Service

The piano is unique among musical instruments because it also serves as fine furniture for the home. In fact, the term "piano finish" has traditionally been used to describe the highest standards in wood finishing. Properly maintaining that fine finish will enhance your home's decor and preserve the value of your piano. 

Basic finish care

Modern pianos are finished with a variety of materials, from traditional lacquer to modern polyurethanes and polyester resins. Whatever the material, a piano finish is designed to protect the wood from dirt and liquid spills, reduce the damaging effects of humidity changes, and -- in the case of clear finishes -- enhance the beauty of the wood.

Modern finishes are designed to do their job without the additional aid of polishes or waxes. In most cases, a piano finish is best maintained by simply keeping it clean and avoiding exposure to direct sunlight, extremes of temperature and humidity, and abrasion.

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What is regulation and how does it affect my piano's performance?

 Regulation is the adjustment of the mechanical aspects of the pianos 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. 

The three systems involved in regulation are the action, trapwork, and damper system. The action is the mechanical part of the piano that transfers the motion of the fingers on the keys to the hammers that strike the strings. It is comprised of over 9,000 parts which require adjustment to critical tolerances to be able to respond to a pianist's every command. The trapwork is the assemblage of levers, dowels, and springs that connects the pedals to the action affecting sustain and dynamics. The damper system is the mechanical part of the piano that stops the vibration of the string when you release the key and is controlled by the key and pedal systems.

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How does the humidity level affect my piano's tuning?

The swelling and shrinking of the piano's soundboard is the most immediate and noticeable effect of humidity change. The soundboard, a sheet of wood approximately 3/8” thick, is made with a slightly crowned shape. The strings pass over the soundboard and are connected to it by a wooden piece called a bridge. The upward crown of the soundboard presses the bridge tightly against the strings.

As the moisture level in the soundboard increases during periods of high relative humidity, the crown expands and pushes the bridge harder against the strings. The strings are stretched tighter and the piano's pitch rises. Because this increase in crown is greater in the center of the soundboard than at the edges, the pitch rises more in the middle octaves than in the bass or treble registers. 

Relative humidity (RH) is the amount of moisture contained in the air, compared to the maximum amount of moisture that the air is capable of holding. During periods of low relative humidity the soundboard shrinks, reducing the crown and decreasing pressure against the strings. The pitch drops, again with the greatest effect noticeable in the center of the keyboard. When relative humidity returns to its previous level, the average pitch of all the strings will return to normal, although the exact pitch of individual strings will be slightly changed from their original settings. Thus, a piano only will stay in tune as long as the relative humidity level in the air surrounding the soundboard remains constant. Extreme humidity changes require making greater changes in string tension to bring the piano into tune. This upsets the equilibrium between the string tension and the piano frame, and the piano never becomes stable.

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When does a piano need reconditioning or rebuilding? | Piano Finish Repair

Most pianos can be played for many years without major repairs. However, the tone, touch, and appearance will continually decline with age. When regular maintenance such as cleaning, regulating, voicing, and tuning can no longer provide satisfactory performance, a piano may require reconditioning or rebuilding.

Exactly when a piano needs rebuilding or reconditioning depends on its original quality, the climate, usage, and performance requirements. One piano may need rebuilding after just twenty years, while another may need only reconditioning after fifty years. The best way to decide is to seek out a qualified piano rebuilder with the judgment, experience, and expertise to advise you on such an important decision. If your Registered Piano Technician does not offer rebuilding services, ask for referrals.

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Piano Humidity Control

Grand Piano Regulation

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Why does a piano's pitch change? | Piano Regulation And Voicing

Piano strings change pitch for two primary reasons: the initial stretching and settling of strings when the piano is new, and soundboard movement due to humidity variation. In the case of new pianos, the pitch drops quickly for the first couple of years as the new strings stretch and wood parts settle. It's very important to maintain any new piano at the proper pitch during this period, so the string tension and piano structure can reach a stable equilibrium. (Most piano manufacturers recommend three to four tunings the first year, and at least two per year after that.)

Aside from this initial settling, climate change is the main cause of pitch change. That's because the piano's main acoustical structure -- the soundboard -- is made of wood. While wooden soundboards produce a wonderful sound, they also react constantly to climate changes. As the relative humidity goes up, the soundboard swells, increasing its crowned shape and stretching the piano's strings to a higher pitch. Then during dry times, the soundboard flattens out, lowering tension on the strings and causing the pitch to drop. The drop in the dry season tends to exceed the rise during humid times, so the net result is a drop in pitch each year that the piano isn't serviced.

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Action Regulation | Piano Regulation

What is regulation and how does it affect my piano's performance?

Regulation is the adjustment of the mechanical aspects of the pianos 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. 

The three systems involved in regulation are the action, trapwork, and damper system. The action is the mechanical part of the piano that transfers the motion of the fingers on the keys to the hammers that strike the strings. It is comprised of over 9,000 parts which require adjustment to critical tolerances to be able to respond to a pianist's every command. The trapwork is the assemblage of levers, dowels, and springs that connects the pedals to the action affecting sustain and dynamics. The damper system is the mechanical part of the piano that stops the vibration of the string when you release the key and is controlled by the key and pedal systems.

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