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♫♫♫♫ ♫♫♫ ♫♫ ♫ ♫ ♫ Website designed, written and built by Wes Flinn RPT - Registered Piano Technician |
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Piano Talk Index: Intro | Guide | Definitions | Tuning Your Piano | Tuning Your New Piano | Six Month Tuning Cycle| Piano Book |
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Essential Piano Definitions : |
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| Printout page #: |
Core concepts
required to manage the physical instrument we call an "acoustic piano" |
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1 |
| Acoustic Piano |
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The |
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| 10 | | Tuning | |||||
| 16 | | Regulation | |||||
| 17 | | Voicing |
-- and -- |
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| 24 | | Full Maintenance Service |
The |
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| 5 | * | Humidity Control | |||||
| 3 | * | Pinblock Failure | |||||
| 4 | * | A - 440 | |||||
| 5 | * | Pitch Raise | |||||
| 3 | * | Repairs | |||||
| 19 | | Temperament | |||||
| 20 | | Piano Maintenance Levels | |||||
| 28 | | Piano Maintenance Program |
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| 9 | | Dampp-Chaser |
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| 2 | | Inner Working Parts of a Piano: Action, keys, hammers, pinblock / pins, soundboard | |||||
| 28 | | The Piano Book: the Industry "Bible" used for piano purchasing information, new and used | |||||
| * | = critical information for owners of older pianos, and of pianos not maintained regularly | ||||||
| 'Acoustic Piano' | ||||||
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"Acoustic Piano"
is the technical name or clarification of the name shortened to just "piano"
in our every-day conversation. We say "acoustic piano" to mean the completely physical, historical type of piano that has been around for 300 years; and, when we want to be sure not to be confused with a "keyboard", or an "electronic piano", as they are called. Keyboards and electronic pianos are not actually pianos, even though that is often what they are called. This confusion is due to the fact that these electronic types of instruments look like a piano, in the sense that they have keys which look like those on an acoustic piano, but are actually organs or synthesizers that have an electronic program which makes them sound similar to an acoustic piano. |
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| These electronic keyboards can do marvelous things, like
imitate many other different
instruments (called "midi" capability) as well as imitate a piano. However, these kinds
of instruments are entirely electronic in every way, and
have none of the physical apparatus that make up the physical acoustical piano
they usually do not "feel" like a piano when they are played, as well as do not
usually sound really like the acoustical piano. There are very sophisticated
instruments called "digital pianos" which
do imitate the physical piano very closely, but not
precisely. The electronic designs do not require the maintenance of tuning, regulation, and other procedures discussed on this Website, which apply only to the physical, acoustical, historical piano. |
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| → | Note: Click this link | |||||||
| for an excellent short but thorough History of the Piano: | ||||||||
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→ |
Note: Anyone considering repairing or refurbishing an old piano should also read this excellent webpage in detail: go to Antique Pianos. |
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here to
go back to Tuning.
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'Inner Working Parts' |
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| What makes a piano
produce its tones is all those parts
inside the beautiful
cabinets!
Parts include:
(1) Action, its
Keys, Hammers, plus all its levers; |
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The way a piano works is this: A Piano
looks like one big "thing" with 88 keys on the front of it. A Piano is actually a beautiful cabinet with 88
physical "motors" all hooked up next to each other, with each motor doing
exactly the same thing: This
is to thrust a Hammer to a String set when a
key is is depressed. Its "Pitch" and "Tone" is
developed by the length of the
Strings that the Hammer hits. Once the Hammer causes the Strings to vibrate, this
vibration is physically carried through the Bridge into the Soundboard, which is the physical "speaker"
of the Piano that amplifies the String vibrations into the air, just like happens in a stereo speaker.
The only difference
between a Piano "Speaker" and a stereo speaker is, that a Piano Speaker
operates
physically, and a stereo speaker operates electronically. |
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| Tuning Hammer | ||||
| The Action |
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| The Hammers | The Keys | The Strings | Soundboard / Bridge | Pinblock / Pins | ||
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| 'Repairs' | |||||
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* |
"Repairs" means: Rehabilitation, replacement of worn out, malfunctioning parts. |
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→ Note:
There is an excellent webpage anyone
considering repairing or refurbishing
an old piano should read to help
understand these pianos go to this internet page: Antique Pianos : www.bluebookofpianos.com/vintagepianos.html |
| 'Pinblock Failure' |
| * |
The pinblock of a piano holds the tuning
pins, and controls the tension of the strings,
and
therefore controls the ability of a piano to tune.
Without this
control, a piano cannot tune !! |
| Scroll back to pictures above,
showing cutaway of this pinblock the entire
pinblock
is a laminated piece of wood about 2 inches thick, and about 8
inches
tall, covering
the width of any piano and, it holds the tuning
pins you see in
any piano. Time, or temperature conditions, or humidity conditions, or any combination of these conditions can cause a piano pinblock to gradually lose its strength and become "soft". When this happens, the tuning pins are no longer held tightly enough to adjust them to control the "pitch", or the highness or lowness of a sound, desired from a wire string. When this situation occurs, if a piano is to be tuned, the pinblock has to be either repaired or "restored", or replaced. Replacement is usually prohibitive in cost, as it requires replacing all the strings and tuning pins at the same time. Replacement is not usually done except in concert level grand pianos, and is almost never done in upright pianos, due to the cost, that are not extremely valuable museum quality pianos. Repair procedures to "restore" the
tightness of a pinblock are almost always successful, and can be
performed at a low cost. An "RPT" certified Technician will also have the experience to advise you honestly if this procedure is actually appropriate to solve your piano's problem, or if a better solution would be to acquire another piano, perhaps because of overall wear or deterioration of the entire piano, in addition to this condition called "pinblock failure." → Note:
There is an excellent webpage anyone
considering repairing or refurbishing
an old piano should read in detail:
click on color thumbnail picture, mid-page: |
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Click here to
go back to Tuning.
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'A - 440' or "Standard Pitch" |
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* | "A - 440"
is also called
"Standard
Pitch" or "Concert Pitch". |
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Tuning to "A - 440" pitch is
always needed when you play your piano with CDs, other electronic instruments
like keyboards or digital devices, other instruments that cannot adjust
their pitch such as accordions, harmonicas etc, or even
clarinets and french-horns
which have very little pitch adjusting capability; also,
Standard Pitch is always recommended for
pianos used for student practice. "A - 440"
= sound that vibrates at 440 cycles (Herz) per second.
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Musical sounds are often generated by instruments that have keys a
modern piano usually has 88 keys. "A - 440" on
today's pianos is the 6th "A" key counting from the left or bottom note on the piano
this 6th "A" key is
set during tuning at 440 cycles or vibrations per
second, then all the other notes on
the piano are set in exact relation to this one note of A - 440.
The reason for all this
procedure is so that all instruments world wide will be sounding in the same key, and any or all kinds of instruments
can all play together successfully. Pianos or other instruments do
not have to be tuned to this standard but they are tuned to this
standard for everyone's convenience, for most all music
performances, and by all types of musicians. |
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| Click here to go back to Tuning. | |||
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'Pitch Raise' |
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| * | "Pitch Raise"
refers to the recurring need to raise the pitch of a piano before tuning it: the pitch (highness
or lowness of sound) is brought up to the standard of "A - 440" defined
above. The need for pitch raises on pianos is due to the fact that a piano is always going flat because of the very way pianos are made a piano is a physical machine, and has no means, such as electronic motors or other automatic devices, to change its pitch. A physical procedure is necessary to do anything regarding an acoustic piano, including playing it! The strings inside a piano all added together create a tension on its iron plate of about 20,000 lbs. on a tiny piano, to over 65,000 lbs. on a huge 10-foot concert grand piano. This extreme tension causes a piano to constantly go flat, very slowly, but it will always continue to occur from the date of manufacture to the end of its service life. The pitch raise procedure is always needed when a piano service has not been regularly maintained with tunings on a calendar basis the longer the time between tunings, the lower the pitch descends, and, for example, with a decrease in pitch of over about 4% the piano cannot be simply tuned immediately back up to the standard of "A - 440" and stay in tune normally it has to be "pitch raised" up to that "A - 440" standard, then re-tuned to that pitch.The technical term for this procedure is "Tension Adjustment", meaning adjusting the strings to the proper tensions, which in turn produces correct string sounds relative to "A - 440" Herz. |
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| Click here to go back to Tuning. | |||
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'Humidity Control' |
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* | "Humidity Control"
in regard to pianos includes any of the various methods of
controlling the humidity level (referred to as "RH", or "Relative
Humidity") of the air
where a piano is located. |
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| → | Click here, or Scroll down to end of this entry for a list of available "evaporative" units Note that small medicinal "mist" type units will not work |
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The reason for this extreme attention given to "humidity control" in dealing with pianos, is that an acoustic piano (see definition above) is constructed necessarily by design of wood or wood product derivatives, and is extremely vulnerable to severe humidity conditions. Very simply, it can break up, crack apart, deteriorate or become non-functional when the humidity levels in the air around it become too low or too high and outside of its design parameters. A piano is not alone is this predicament, as all wooden products suffer this limitation it is well understood how solid wood furniture cracks and breaks apart in low humidity conditions, and how expensive musical instruments like violins or cellos or clarinets and even brass instruments need protection and humidification to prevent damage from adverse humidity conditions. If you feel this attention to humidity control for pianos is exaggerated, even irresponsible, I humbly suggest that this attention is very well founded. The reality is that your piano, when located in adverse low humidity conditions, really will crack or break or self-destruct in some way. It is not a matter of "if", but rather a matter of "when". I have observed new pianos "explode", and older pianos become useless, deteriorating into firewood because of storage or location in uncontrolled humidity situations, such as garages or storage units or vacation houses. Almost every piano I visit in Arizona is suffering from some form of low humidity damage, in the form of pinblocks deteriorating to softness, soundboards showing stress cracks, tunings becoming very instable, pitch levels going crazy. Sometimes inner parts in the action are suddenly breaking, which requires immediate and expensive repair to avoid further damage. Often the damage is already fatally done, and the piano becomes useless without extensive repair for examples, see Review #10 on this Website, describing a Kawai 7-foot home concert grand piano shipped to Arizona from Florida, which was both shipped and stored improperly before delivery: what should have been a simple tuning became a $3000 raising from the dead, because the pinblock was ruined, and most all glued parts of the action separated and had to be repaired, which in turn necessitated a Full Maintenance Service as well as totally re-tuning; and, also see Review #22 on this Website, describing the early and effective results of an area humidifier. Low humidity conditions affect a piano most severely, suddenly High humidity conditions affect a piano, not as severely or suddenly |
| The simple and least expensive solution to control low humidity
conditions is to install an area humidifier in the
general location where a piano "lives", and keep the RH level above
30% RH at all times. An automatic humidifier can be set at 35%
RH, and the piano as well as all the people living with it become very
"happy campers" !! The choice of area humidifiers for this protective purpose must be the "evaporative" type, and not the mist type used for medicinal purposes. The unit should also have a built-in and automatic device called a "humidistat" ( or a "hygrometer" ), which is an "RH" or relative humidity meter that measures the humidity in the air, and automatically turns the unit on and off to control an exact level of humidity. An evaporative humidifier unit without a built-in humidistat can also work just as well, but then you must also purchase a free-standing hygrometer to work with it in order to control an exact level of humidity it is plainly much easier and less expensive to get a humidifier with the built-in automatic humidistat, and many such units are available on today's market. Pianos are known to be "safe" from low humidity atmospheric damage if the humidity level is kept above 30% RH in the air surrounding it. Pianos can usually tolerate high humidity conditions, even 70% RH or above, without structural damage, but pianos often begin failing progressively when located where humidity levels drop below 30% RH for any length of time. Setting an automatic humidifier at 35+% RH virtually solves low humidity protection problems. To control high humidity conditions, or conditions where the humidity or temperature conditions are variable all the time, the Dampp-Chaser system is the only solution - see below.
Please note: the Dampp-Chaser climate control system is the best,
although the most expensive to purchase yet the least expensive to
operate, long-term solution to control all types of weather temperature
or humidity conditions that affect pianos see information below.
The total conditioning obtained by using a Dampp-Chaser system also
protects and preserves tuning, thus tunings will last much longer using
a total climate control system like the Dampp-Chaser.
Another
method of humidity control is to install a humidity control system into
your household air-conditioning system. This method is the most
expensive, but adds additional benefits at no extra cost of providing
comfort and protection to all the people who live in the house with a
piano, as well as to all the contents of the house, including furniture,
cabinets, house structure, and to other valuable possessions you might
own such as other musical instruments, antiques, historical books and
libraries or similar treasures, etc. Please note, however, that
household humidity systems are "protective" only, and only accomplish the
same purpose as area humidifiers already mentioned above they cannot
accomplish the tuning and tonal benefits provided by a piano climate
control system such as the Dampp-Chaser system described below and in
the "Climate Control" section of this website (click tab at top of this
page). If budget is no problem, the perfect solution is to install a
household humidity control for all the reasons mentioned here, as well
as the Dampp-Chaser system in the piano itself to develop both the ultimate care factor and
ultimate performance capability for the piano. |
| Humidifier Sources |
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All of the information explained
below about humidifiers remains valid, including the models suggested --
but, finding these products at the present time in retail stores may not
be possible. |
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Ace Hardware
now stocks some EssickAir evaporative humidifiers (the
source maker of many other brands of humidifiers, including Moist Air,
Emerson, Bemis, and others, etc.), which models may serve your purpose
and budget. |
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Note:
Do not rely on website information completely
for purchase information or purchase decisions. This is why these
lists below are provided. Sometimes stores will not stock what is
on a website, or will stock items that are not on the public side of a
website. All stores will usually bring an item to your closest
location if they are out of stock, or if it is available on their
company "ordering" website (but not the public site). |
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Home Depot
and Sears Roebuck are consistently good sources for humidifiers
with built-in humidistats, are locations which stock quality products,
and stock availability of filters. |
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All products listed below are
acceptable humidifiers understand that the larger the unit, the more
quietly it can operate, and the less refilling of water is needed. All
are "evaporative" design. |
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Ace Hardware |
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Size: |
Manufacturer: |
Model #: |
Filter #: | |||
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Ace Hardware now carries a few Essick products -- an industry standard. Any model or size is OK, but choose "evaporative" design in size you need |
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Water Additive #: EssickAir 1970 Bacteriostat treatment |
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| Home Depot |
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Size: | Manufacturer: | Model #: | Filter #: |
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| Largest - 2900 sq ft | Moist Air (Essick) | HD 1407 | HDC-12 | ||||||||
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Large - 2500 " " | Moist Air (Essick) | MA 1201 | MAF-1 | |||||||
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Best Overall Choice for value / size for most home situations | ||||||||||
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Water Additive:
All
evaporative humidifiers
can use |
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Sears |
| Size: | Manufacturer: | Model #: | Filter #: |
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± |
Largest - 2900 sq ft | Kenmore | 15420 | 14911 | |||
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Large - 2500 " " | Kenmore | 15412 * | 14906 | |||
| Medium - 1700 " " | Kenmore | 15408 | 758 | ||||
| Medium - 1700 " " | Moist Air (Essick) | 0800 | MAF2 | ||||
| Smaller - 1100 " " | Moist Air (Essick) | 0500 | MA1040 | ||||
| Small - 700 sq ft | Moist Air (Essick) | 0300 | MA1040 | ||||
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± |
Model 15420 sometimes not in
production, or available Model 15412 has most features of all the above listings Best Overall Choice for value / size for most home situations The size "2500 sq ft" is best size for most all locations, especially for home situations with constant family in-an-out-of-doors traffic. The smaller sizes work fine for no traffic or low traffic areas -- but also remember the larger units are quieter and need less refilling |
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Water Additive:
All
evaporative humidifiers
can use |
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'Dampp-Chaser' |
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| "Dampp-Chaser"
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| This is the every day
name of the biggest selling, best known product for the purpose of
controlling humidity and temperature conditions inside a piano cabinet.
A piano is constructed basically out
of wood in the cabinet and soundboard, then steel (and
copper wrapping) is used for the strings, and cast iron is used for the plate that holds anywhere from 20,000 pounds of
tension in a small piano to 65,000 pounds of tension found in large
grand pianos. All of these materials used in constructing a piano are at odds with each other regarding expansion and contraction rates that occur when there temperature or humidity changes which occur all the time every hour of every day of the year. This phenomenon of stretching in contrary and opposite directions at different rates causes a piano to "go out of tune." This can happen slowly or very quickly with a sudden or severe weather change. Using the Dampp-Chaser almost eliminates this kind of problem, and keeps the piano much more closely in tune, as well as protected from either the normal and slow or the fast and severe weather changes. |
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| | "Piano Life Saver System" | |||
| This is the actual trade name for
this product, and it is manufactured by the Dampp-Chaser Corporation.
The product has been in use since 1947, and has taken on the nick-name of
"Dampp-Chaser" as it is commonly known to everyone today. More information can be found both on this Website, by clicking the 'Climate Control" tab above, then by clicking on the corporate links in that section. Click here for pictures. |
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| | "Climate Control
System" = systems like the Dampp-Chaser |
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| | "Humidity
Control" = information about pianos and humidity. |
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| 'Tuning' | |||||
| | Acoustic Pianos
use 3 Tuning Methods
each serves
a different purpose: |
| 1) Remedial Tuning |
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| 2) Set-up Tuning | ||||
| 3) Maintenance Tuning | ||||
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| Here are the rules no exceptions, | ||||
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if you expect to get a stable
tuning: |
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| 1) | "Remedial Tuning", a two-part procedure | |||
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also called "Pitch Raise"
Tuning This tuning method is required when: a piano has not been tuned for a long time a piano has been in storage or moved around to different locations a piano is so far out of tune that the temperament must be restored a poorly installed previous tuning must be corrected
or, when "Standard
Pitch" level of "A-440" includes 2 separate processes:
(1) Restores pitch level to A-440
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2)
"Set-up
Tuning", also called |
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"sets" or "floats"
a temperament at a piano's existing pitch level "Set-up Tuning" procedure can sometimes be used alone, without remedial work or pitch raises, depending entirely on a piano's existing tuning condition |
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Note, that when a piano is so far out of tune that its temperament must be
restored, or a pitch change up or down is needed,
a "Set-up Tuning"
alone will not work properly, and
the "Remedial Tuning" tuning
procedures above must be used if you expect worth-while results.
Otherwise, it WILL NOT RETAIN a new tuning
well at all, and will simply go out of tune again. |
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The "Set-up Tuning" procedure
alone |
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3)
"Maintenance
Tuning" only, |
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Can be used only when
piano has been
tuned previously within the last few months, using any of these 3 types of tunings |
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| must be
scheduled on a regular calendar basis, at 30 to 150 day intervals |
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The "Maintenance Tuning" procedure requires
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Click here to
go back to Tuning.
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Note: Repairs may be needed before a piano will tune |
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Click here to
review a difficult problem for all pianos in
Arizona,
which is Dehydration, caused by dry weather
conditions,
called "pinblock
failure." |
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| See "Older Pianos" and "Player Pianos" below. | ||||
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Click here to go back to Tuning. |
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| | More Explanations
about these
tuning procedures: |
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| 1) |
"Remedial Tuning", or "Pitch Raise"
tuning: This is an overall corrective method which includes two separate parts, or procedures: (a) a special procedure, different from tuning, is used to re-tension both the piano's strings and its iron plate into a balanced and stable condition that produces a desired pitch level, usually to "Standard Pitch" or "Concert Pitch" of "A - 440"; and, (b) a second procedure to set a temperament follows, which is the actual tuning, called a "Set-up Tuning", which fine tunes the piano to the newly developed pitch level established by the first procedure (see more details in #2 below). This style tuning process is also called a "Pitch Raise" tuning, or a "Double Tuning". The proper technical name for this procedure is "Tension Adjustment" tuning which means the piano overall has been re-tensioned to a new pitch level before it was actually tuned. This "Tension Adjustment" or "Pitch
Raise" procedure is mandatory when a piano's pitch level needs changing
more than 4-% higher / lower than the piano is found to be at the time
of a new tuning. Otherwise, if an acoustical piano is simply tuned
at a new pitch level exceeding this 4-% parameter higher or lower than
its existing pitch level, the new tuning will invariably become unstable, not durable,
and will fade away earlier than necessary, in a degree
depending on the amount of pitch change beyond this 4-% limit.
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| 2) |
"Set-up" style tuning:
This Set-Up procedure takes about 25% longer
than
a periodic, or "maintenance" tuning. |
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| 3) | "Maintenance"
style tuning:
A procedure which is a calendar-based tuning
following a
Set-up tuning, a Pitch Raise tuning, or a Maintenance tuning performed within
the previous 6 months. It is a faster procedure, requiring less time, because these
types of previous tunings
will still be basically in place inside of 6 months. The Maintenance
tuning gives attention mainly to re-setting the "unisons",
refining the existing temperament, and does not need to address as much re-setting of the pin positions
as a "Set-up Tuning". |
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| Older Pianos: | |||||||
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To make tuning possible on older pianos,
Beware! repairs may be necessary !! |
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For details, go to: Repairs and pinblock failure. For full information, go to: Full Maintenance Service; Next, go to the five definitions above on this page marked with a red star "*"; and, then go to: Antique Pianos. |
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| Click here to go back to Tuning. | |||||||
| Player Pianos: (mechanical / pneumatic players) | |||||
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Note that most antique
player pianos require removal of at least part of the player
mechanism in
order to access the piano's tuning pins, and therefore cost more to tune
or to service. If the player system does not work, and the piano
does work, you may want to remove the player entirely for future
convenience. Modern electronic piano player systems take up
almost no internal space and do not require removal for service. A "player piano" is normally a regular piano with a huge and complex player system literally "stuffed" inside to operate the piano mechanically. There is usually no room remaining to service or to repair the piano normally, and this system usually has to be removed partially in order to do any kind of work on the piano itself, including only tuning. Also be aware that all the normal warnings for "older pianos" above apply to player pianos regarding any kind of services or repairs to the actual piano itself, in addition to the player mechanism issues whether to disable it, try to improve it or to repair it, etc. Further, realize that, although repair of mechanical piano player systems is actually possible, such repair is usually prohibitive in cost except for unusual situations with unlimited budgets, and where goals of nostalgic or historic restorations are ruling your decisions. Repair service for mechanical player systems is almost unavailable in today's world, takes forever to get done, and the costs are unbelievable. If you must do this, you are best advised to get an "RPT" - Registered Piano Technician to guide you down this road, as well as be prepared to both pay big time and wait big time for your goals to be met. You can visit the following links for a start on information: Go to: Player Techs, Player Rolls, Antique Pianos. Click here to go back to Tuning. |
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Why tune a piano, in
the first place? |
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| Acoustical pianos are physical
machines. They go flat naturally and normally, by design,
due to the very high tension on their strings. An acoustic piano
is always, all the time, going microscopically flat due to this tension
so time between tunings determines much of how flat a piano goes down
before its next tuning. Playing a piano affects tuning only by a
small amount. Temperature and humidity changes affect the tuning
of a piano by a large amount. Acoustic pianos tuned regularly,
however,
usually stay acceptably in tune;
and, when tuned on a regular calendar basis, they stay up to pitch acceptably,
as well. |
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How often should a
piano be tuned? |
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| 5 essays on this Website cover all tuning requirements: | ||||
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Tuning Your Piano overview of Tuning Cycles Tuning Your New Piano needs of new pianos Six-Month Piano Tuning Cycles the history Piano Maintenance Programs for serious owners How Often / When Should I Have My Piano Tuned |
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Some details on
meaning of "tuning": |
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| The non-technical, popular use of the term "tuning" is to describe making a piano sound "right" or "normal", without reference to what procedure might be involved. | |||||
| The technical meaning of "tuning" refers only to a procedure that tightens or loosens strings, which causes the sounds made by piano strings to go up or down in pitch. | |||||
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"Tuning" is not,
by technical definition, either |
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About unisons: "Tuning" also includes the meaning of drawing the strings on notes using more than one string (most of the piano) into equal tensions or sounds, and both the procedure and the resulting sounds are called "unisons". |
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| Click here to go: back up to
"maintenance" tunings |
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| The overall maintenance condition of a piano directly and strongly affects its ability and potential to accept or benefit from any kind of tuning procedure. | ||||
| "Full Maintenance
Service" = details on how this works. Click here to go back to Tuning. |
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Tuning Technology |
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| Modern piano
tuning technology is the result of 300 years of research and development,
beginning with the invention of the piano in 1709. Today's tuning
techniques are just as reliable and predictable as flying techniques are
in aeronautics. A basic problem in tuning technology has always
been to cope with the physical design of acoustical pianos their
strings constantly go flat due to stretching from the very high tension
needed to produce the 88 different piano pitches. The correct and
effective methods developed to overcome this tendency are explained
in the 'Tuning' section above; properly executed, these procedures provide very stable and
durable tunings, even in locations not having the benefit of climate
controlled conditions. Click here to go back to Tuning. |
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'Regulation' |
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| "Regulation" refers to and
includes all the keys and hammers
and other internal working parts of a piano, which collectively are called the "action"
mechanism of a piano. Then, to "regulate" this action means to
adjust all of these various parts to work properly and efficiently.
It is vital for a piano owner to understand that
nearly all piano actions are made out of natural wood, and are
susceptible to changes in temperature and humidity. A piano action
must be regulated to the climate in which the piano will operate
moving from one climate to another usually requires the re-regulation of
a piano -- see my note on moving pianos in the section below "Piano
Maintenance Levels". Regulation procedures can range from: 1) a 'touch-up' service to tweak or improve the existing settings when they are more or less correct; and, 2) to a full regulation service that can require two days or more to complete on a performance grade piano. |
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"Regulation" also includes the
concept of properly Lubricating
all these working parts. The first signal that your piano needs Regulation is when the keys start feeling heavy and more sluggish than normal, and piano seems tiring to play. Part of this symptom is due to need for Lubrication, and part due to need for adjustments both are done together. |
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"Regulation" also most often means careful attention to the condition of the hammers, and includes the idea of re-shaping and reconditioning the resilience of the hammer felt to interact with the strings properly (provided the hammers are not so worn down that they can no longer be reconditioned to work efficiently). |
| | Grand Piano Action "Motor"
Picture:
Click here for a side view of a Grand Action "motor" |
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| A very useful way to think of the Action in
a Piano is to consider that each one of the 88 keys on a piano represents an independent
physical "motor" located directly behind it in the inside of a piano then think of 88
of these individual motors as simply hooked up side by side, next to each other, and there you
have it! That's what any piano action is! Very important: Sometimes a piano cannot be regulated without some basic repairs! |
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'Voicing' |
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"Voicing" is the
last step in Piano Preparation |
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| This term "voicing" almost
always applied to commercial performance grade pianos, and not to home
pianos. Specifically, voicing is the work of upgrading the efficiency of piano string behavior, as coordinated with its hammer behavior. Some of the procedures are the same for preparing either home or commercial pianos, but home pianos would profit very little from the advanced procedures used for commercial pianos, which involve needling and filing and shaping the hammers to meet specific tone quality goals home piano hammers can even be ruined by applying such advanced techniques, because they were not designed for such modifications. To pursue these voicing procedures requires that all the rest of the piano is working at a near perfect efficiency before a "voicing" routine can be useful the regulation and tuning of a piano has to be as perfect as possible before voicing the piano can be accomplished. The goal of voicing is first to cause the sounds of all piano notes to produce more equal tonal qualities in general, and then second to cause all these sounds to be more even in volume and intensity, while at the same time modifying the piano sounds to please the listening tastes of the listener or owner or user of the instrument. If this sound complicated, well, it is! But that is what voicing is all about. Voicing is done in a general way by the manufacturers of all pianos. The term
"Concert Voicing" is a better description of the custom voicing that is done to
concert venue pianos
and recording studio pianos This kind of procedure is very tedious, time
consuming, and extremely expensive, and it can take sometimes many days of work by a
technician to satisfy these goals of perfection that are usually required to achieve
those 'perfect' piano tones demanded professionally. The work involves countless
procedures of needling, shaping, testing of hammer characteristics, as well as testing, measuring and adjusting of string
positions and shapes, and repeating these procedures almost endlessly until the instrument
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| In addition, general humidity conditions, and temperature or humidity changes greatly affect the general "voice" of an acoustical piano. The information provided in the section above about "Humidity Control" should be seriously considered by all acoustic piano owners to read now, click any top of page link to definitions list, then click 'Humidity Control", then click "Voicing" to return. | ||||||
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Very important: Sometimes a piano cannot be voiced without replacement of hammers! | |||||
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The following excerpt is a very reasonable description of the acoustic piano voicing concept: | |||||
| "Voicing
work is...very misunderstood. |
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| "Voicing a
piano is the art of adjusting the volume, tone, sustain and clarity of
the entire instrument or individual notes. Voicing cannot change
the basic character of an instrument, it can only bring it to its
maximum potential, and it is often a matter of personal taste. The
entire piano may be voiced 'up' (brightened) or down. Individual
notes or sections can be voiced to even out the keyboard. |
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| "There are
many ways to 'tone build' on a piano, but voicing the hammers is the
most familiar one.... It involves either softening the hammers by
piercing the felt with small needles at specific points to various
depths, or hardening the hammers by filing, drying, or use of chemicals.
Care must be taken not to overdo any voicing work on the hammers; they
easily can be ruined. If the owner feels a piano is too bright,
the hammers can be softened to a degree to produce a more mellow tone.
However, too much needling causes a 'mushy' tone with poor sustain and
projection. Hammers compact and harden over time, and a small
amount of needling may be advisable to help restore the original tone
quality. |
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| "Hardening
hammers can improve pianos with weak or indistinct tone. Don't
expect miracles on a cheaper or small piano. Too much hardening of
hammers with a lacquer or other hardening agent will make the tone
'tinny' or brittle, and it will be difficult or impossible to voice down
properly later. |
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| "Since
hammers are wool felt, they absorb moisture in high humidity and can
mellow noticeably in tone. A hammer iron will dry them out, but it
is usually used before a concert for a temporary tone adjustment.
For the home, church, school, or club, a piano dehumidifier system
rectifies the problem. [Wes Flinn note: a Dampp-Chaser climate control system can often solve all these problems for all but specialty uses of the piano] |
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| "Filing
hammers removes the softer or 'dead' outer layer of hammer felt and
brings out a brighter tone. If the hammers have been filed on a
new piano in the factory, additional filing will do little to bring up
the tone. |
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| "To be
properly voiced, the piano must be in good tune and the action well
regulated. |
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| "Other aspects of voicing and tone-building include setting the strings properly over their bearing points, tightening all screws from the plate to the pinblock and the back, and adjusting action placement and hammer strike points...." | |||
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Above quotation from: |
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| 'Temperament' | ||||
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| "Temperament", in
its very basic meaning, describes how a piano
may "sound" to us. |
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We may say, "...this piano has 'good
temperament' or 'nice temperament" -- and what we would probably mean is that the sound the piano
makes seems 'pleasant', 'normal', or 'correct', or seems appropriate for the music we
want to make on that piano. "Temperament", as a technical term in piano technology, refers to specific sound frequencies or mathematical values of the 88 piano notes used by a piano; and, the arrangement of those mathematical values and relationships are often given names corresponding to their inventors as well as to a historical time period when a particular system was used. The temperament used most often in today's music is called "equal temperament", meaning that the musical tones in this temperament system are arranged mathematically equidistant one to another. Most other temperaments of the past are grouped together today under the name "historical temperaments" -- and the list of such temperaments is vast, and is a complete subject of knowledge unto itself. |
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| 'Piano Maintenance Levels' | ||||||
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| Quick reference links: | ||
| Click for quick reference, or continue reading details: | ||||
| | Level 1: Normal routine maintenance schedules | |||
| | Level 2: Touch-up Maintenance Service | |||
| | Level 3: Full Maintenance Service | |||
| | Level 4: Remedial Maintenance Service | |||
| | Level 5:
Performance-grade Piano Preparation, or
Concert Level Maintenance Service |
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| | Level 6: Custom Level Maintenance Service | |||
| | Level 7: Hybrid Level Maintenance Service | |||
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| Special Note for Moving physical acoustic piano: | ||
There are over 500 screws plus other elements in a piano action that become loose over time in a physical piano due to expansion and contraction of wooden and metal parts caused by natural changes of temperature and humidity. In the old location, before any moving occurs, the piano may function OK and seem just fine -- but, when moved to another location, loose parts can shift about and become out of adjustment from the normal vibrations involved in the moving of the piano. These changed adjustments can not only cause the piano not to play, or not to play well, but also can cause serious damage if the piano becomes used in this condition. After arrival in a new location, a piano not only needs re-tuning, but also needs to be given attention to its action mechanism. A Registered Piano Technician can handle all this type of service, and can always be located world-wide by calling: 913-432-9975 Back to "Regulation" |
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| | "Maintenance" is overall
term for caring for a piano. |
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| "Maintenance" can mean all the
procedures described on this Website, and others not mentioned.
The most common use of the term is "good maintenance", usually taken to
mean regular calendar scheduled tunings, and attention to other factors
whenever necessary, such as regulation, voicing, and repairs. There are several levels of Maintenance Service for acoustic pianos, depending on their purpose and type of use they are given -- something like comparing the needs of a seldom used personal car versus the needs of a non-stop public taxi cab. |
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Seven
Levels of Maintenance exist for pianos. |
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| These different degrees of care and
service and maintenance correspond roughly to automobile types, their
purposes and uses -- similar to contrasting needs of autos compare
different auto types like these to different piano types: your personal daily runner car or van, a work truck, a taxi cab, a super luxury sedan, a custom built street rod, a super performance sports car, or, a gorgeous classic restoration show car. |
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| Level 3: Full Maintenance Service | |||||||
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| Level 4: Remedial Maintenance Service | |||||||
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And sometimes not even
played! |
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'Full Maintenance Service' |
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| "Full
Maintenance Service" = Level 3 Service above
Note: Level 3 Service
means adjusting, lubricating and tuning
all systems of a
piano
these systems include as many as 12,000
parts, depending on
type and model. |
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What is this service, why needed, and for what? |
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| The degree of accuracy
and efficiency possible to achieve with a Full Maintenance Service goes
well beyond what the factory can achieve with a new piano prior to its
"breaking in period". After a piano has been in use for a
sufficient time, all its many thousands of parts of wood, leather, felt,
metal and other materials become naturally compacted and polished and smoothly
acclimated one to the
other. This process is commonly known as the "break in period" for
a new piano. What happens is, that through normal use, all the piano action parts change their shape microscopically, and thus the action becomes naturally and normally out of adjustment. The action parts over time also become dry, thus sluggish. Like all machines, the piano now needs its normal maintenance and lubrication procedures. It is only after this "break in" development, followed by re-regulation / lubrication / hammer service, that the highest level of performance be accomplished by a piano. |
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| A piano actually tells us when it needs this service. The keys
usually become stiffer, harder to play; sometimes notes double strike or do
other unusual things, even stick; usually the tuning quality becomes
brighter or harsh due to increased strike-lines and resulting fuzz on
the hammers; and, always we can hear the
piano beg for lubrication by
the internal squeaking sounds made by the action. |
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| An analogy here would be to compare a piano to a fine set of binoculars
which operate, but are
so dry, tight, and hard
to manage, that it's almost impossible to focus and use them maintenance service
in this case would be
to perform whatever lubrication and adjustment
procedures were needed to
make
them operate in a
normal manner. Perhaps little change, only lubrication and small
adjustments, and not even parts might be needed to
make this wonderful set of binoculars operate and focus perfectly. In the exact same manner,
Full Maintenance Service for a piano services the dry, tight, out of
focus
condition of the piano, and applies skillful regulation, lubrication and
tuning procedures to its working parts. The results are invariably astonishing to an owner. |
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| It is only after "break in", and the re-setting and lubricating of all
the action parts in their mature condition to their highest operational
efficiency, that we actually discover what our piano is really like. |
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| This scenario holds true in pianos that are very modest in
their concept up through the most advanced performance style pianos
they are all astonishingly better and amazing after they have once
been
broken in and then had this developed maturity re-regulated
and
lubricated and thus refined and focused into more highly critical
operational settings.
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| This Service translates immediately to solid enjoyment and pleasure using a
piano. The piano becomes much faster and more efficient than is the
player, allowing the player to become more involved in managing the
music the piano makes, rather than struggling to force the piano to make
music !! It is always a big
shock to witness the "before and after"
difference of the
"Full Maintenance Service", or Level 3 Service in the list above. |
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What the procedure includes: |
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(1) cleaning the
piano, inside and out, both for cosmetics, and for
the technical
requirement of keeping dust and
soil from interfering with lubricating its action;
DUST
ACCUMULATION
on the action mechanism inside a piano can be very
destructive,
and cause the action to literally chew itself up like sandpaper would
do! Actions must be cleaned periodically to prevent
this. (3) hammer service,
a procedure which maintains or restores the hammers (a) to a
shape similar to their original
"egg-like" look,
(b) removes the fuzz and extra long
strike lines
(developed from normal use) from the crowns of the hammers, and (c) restores
a
basic default
style voicing quality to the hammer consistency;
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Full Maintenance Service is
needed based on both the use of, and the age
of a piano. |
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For examples, go to
Reviews, and look for this symbol:
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'Piano Maintenance
Program' |
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| | "Piano Maintenance Program" is a scheduled and comprehensive plan of procedures for a piano which takes care of its every need on an "as needed" basis as well as a calendar basis. An entire page about this procedure is included in the "Piano Maintenance" section of this Website its tab can be found on every page of the site refer to this page for full details, by clicking this button anywhere on website: | |||
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'The |
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"The Piano Book" is literally the "Bible" in today's world for factual and unbiased information about Pianos. Book #1 at right is the bi-Annual Supplement, primarily used for buying new pianos. Book #2 is the Original, a large 9x12" - 300+ page book, published over 20 years ago. The Original is an exhaustive reference on all aspects of a piano, its history, construction, quality issues, as well as maintenance and climate issues which affect pianos. It is quoted on this Website in the Section called "Piano Talk", under its title "The Piano Book" as an authority on the subject of tuning frequency and Climate Control Systems. Both books are available from Bookstores or the publisher. For more information, click: www.pianobook.com and, www.pianobuyer.com |
(1) |
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(2) |
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...bi-Annual Supplement, |
...the |
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Piano Talk Index: Intro | Guide | Definitions | Tuning Your Piano | Tuning Your New Piano | Six Month Tuning Cycle| Piano Book |
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©2011
Piano Tuning Phoenix |
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