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Industries & Professions /
Musical Instrument Repairers and Tuners
All but the most heavily damaged instruments usually can be repaired by competent, experienced craftsworkers. In addition, instruments require regular maintenance and inspection to ensure that they play properly and to prevent small problems from becoming major ones.
Stringed-instrument repairers perform extremely detailed and difficult work. The repair of violins, violas, and cellos might be considered the finest woodworking done in the world today. Because their sound quality is so beautiful, some older, rarer violins are worth millions of dollars, and musicians will sometimes fly halfway around the world to have rare instruments repaired by master restorers. In many ways, the work of these master craftspeople may be compared to the restoration of fine art masterpieces.
When a violin or other valuable stringed instrument needs repair, its owner takes the instrument to a repair shop, which may employ many repairers. If the violin has cracks in its body, it must be taken apart. The pieces of a violin are held together by a special glue that allows the instrument to be dismantled easily for repair purposes. The glue, which is made from hides and bones and has been used for more than 400 years, is sturdy but does not bond permanently with the wood.
To repair a crack in the back of a violin, the repairer first pops the back off the instrument. After cleaning the crack with warm water, the repairer glues the crack and attaches cleats or studs above the crack on the inside to prevent further splitting. The repairer reassembles the violin and closes the outside of the crack with fill varnish. Lastly, the repairer treats the crack scrupulously with retouch varnish so that it becomes invisible.
The repairer does not complete every step immediately after the previous one. Depending on the age and value of the instrument, a repair job can take three weeks or longer. Glues and varnishes need to set, and highly detailed work demands much concentration. The repairer also needs to do research to isolate the original type of varnish on the instrument and match it precisely with modern materials. The repairer usually has more than one repair job going at any one time.
A major restoration, such as the replacement of old patchwork or the fitting of inside patches to support the instrument, requires even more time. A large project can take two years or longer. A master restorer can put 2,000 or more hours into the repair of a valuable violin that has nothing more than a few cracks in its finish. Since many fine instruments are worth $2 million or more, they need intense work to preserve the superior quality of their sound. The repairer cannot rush the work, must concentrate on every detail, and complete the repair properly or risk other problems later on.
While all instruments are not made by Stradivari, they still need to be kept in good condition to be played well. Owners bring in their violins, violas, and cellos to the repair shop every season for cleaning, inspecting joints, and gluing gaps. The work involves tools similar to a woodworker's tools, such as carving knives, planes, and gouges. The violin repairer will often need to play the instrument to check its condition and tune it. Bow rehairers maintain the quality of the taut, vibrating horsehair string that is stretched from end to end of the resilient wooden bow.
Wind-instrument repairers require a similar level of skill to that required of stringed-instrument repairers. However, as the quality of sound is more standard among manufacturers, old instruments do not necessarily play any better than new ones, and these instruments do not command the same value as a fine violin.
The repairer first needs to determine the extent of repairs that the instrument warrants. The process may range from a few minor repairs to bring the instrument up to playing condition to a complete overhaul. After fixing the instrument, the repairer will also clean both the inside and outside and may replate the metal finish on a scuffed or rusty instrument.
For woodwinds such as clarinets and oboes, common repairs include fixing or replacing the moving parts of the instrument, including replacing broken keys with new keys, cutting new padding or corks to replace worn pieces, and replacing springs. If the body of the woodwind is cracked in any sections, the repairer will take the instrument apart and attempt to pin or glue the crack shut. In some situations, the repairer will replace the entire section or joint of the instrument.
Repairing brass instruments such as trumpets and French horns requires skill in metal working and plating. The pieces of these instruments are held together by solder, which the repairer must heat and remove to take the instrument apart for repair work. To fix dents, the repairer will unsolder the piece and work the dent out with hammers and more delicate tools and seal splits in the metal with solder as well. A final buffing and polishing usually removes any evidence of the repair.
If one of the valves of the brass instrument is leaking, the repairer may replate it and build up layers of metal to fill the gaps. At times, the repairer will replace a badly damaged valve with a new valve from the instrument manufacturer, but often the owner will discard the entire instrument because the cost of making a new valve from raw materials is prohibitive. Replacement parts are usually available from the manufacturer, but parts for older instruments are sometimes difficult or impossible to find. For this reason, many repairers save and stockpile discarded instruments for their parts.
Piano technicians and piano tuners repair and tune pianos so that when a key is struck it will produce its correctly pitched note of the musical scale. A piano may go out of tune for a variety of reasons, including strings that have stretched or tightened from age, temperature change, relocation, or through use. Tuners use a special wrench to adjust the pins that control the tension on the strings. Piano tuners usually are specially trained for such work, but piano technicians may also perform tuning in connection with a more thorough inspection or overhaul of an instrument.
A piano's performance is also affected by problems in any of the thousands of moving parts of the action or by problems in the sounding board or the frame holding the strings. These are problems that the technician is trained to analyze and correct. They may involve replacing or repairing parts or making adjustments that enable the existing parts to function more smoothly.
The life of a piano—that is, the period of time before it can no longer be properly tuned or adjusted to correct operational problems—is usually estimated at 20 years. Because the harp and strong outer wooden frame are seldom damaged, technicians often rebuild pianos by replacing the sounding board and strings, refurbishing and replacing parts where necessary, and refinishing the outer case.
In all their work, from tuning to rebuilding, piano technicians discover a piano's problems by talking to the owner and playing the instrument themselves. They may dismantle a piano partially on-site to determine the amount of wear to its parts and look for broken parts. They use common hand tools such as hammers, screwdrivers, and pliers. To repair and rebuild pianos, they use a variety of specialized tools for stringing and setting pins.
For pipe organ technicians, the largest part of the job is repairing and maintaining existing organs. This primarily involves tuning the pipes, which can be time consuming, even in a moderate-sized organ.
To tune a flue pipe, the technician moves a slide that increases or decreases the length of the speaking (note-producing) part of the pipe, varying its pitch. The technician tunes a reed pipe by varying the length of the brass reed inside the pipe.
To tune an organ, the technician tunes either the A or C pipes by matching their notes with those of a tuning fork or electronic note-producing device. He or she then tunes the other pipes in harmony with the A or C notes. This may require a day or more for a moderate-sized organ and much longer for a giant concert organ.
Pipe organ technicians also diagnose, locate, and correct problems in the operating parts of the organ and perform preventive maintenance on a regular basis. To do this, they work with electric wind-generating equipment and with slides, valves, keys, air channels, and other equipment that enables the organist to produce the desired music.
Occasionally, a new organ is installed in a new or existing structure. Manufacturers design and install the largest organs. Each is unique, and the designer carefully supervises its construction and installation. Often, designers individually create moderate-sized organs specifically for the structure, usually churches, in which they will be played. Technicians follow the designer's blueprints closely during installation. The work involves assembling and connecting premanufactured components, using a variety of hand and power tools. Technicians may work in teams, especially when installing the largest pipes of the organ.
Although the electronic organ imitates the sound of the pipe organ, the workings of the two instruments have little in common. The electronic organ consists of electrical and electronic components and circuits that channel electrical current through various oscillators and amplifiers to produce sound when a player presses each key. It is rare for an oscillator or other component to need adjustment in the way an organ pipe needs to be adjusted to tune it. A technician tunes an electronic organ by testing it for electronic malfunction and replacing or repairing the component, circuit board, or wire.
The work of the electronic organ technician is closer to that of the television repair technician than it is to that of the pipe organ technician. The technician often begins looking for the source of a problem by checking for loose wires and solder connections. After making routine checks, technicians consult wiring diagrams that enable them to trace and test the circuits of the entire instrument to find malfunctions. For instance, an unusual or irregular voltage in a circuit may indicate a problem. Once the problem has been located, the technician often solves it by replacing a malfunctioning part, such as a circuit board.
Electronic organ technicians work with common electrician's tools: pliers, wire cutters, screwdriver, soldering iron, and testing equipment. Technicians can make most repairs and adjustments in the customer's home. Because each manufacturer's instruments are arranged differently, technicians follow manufacturers' wiring diagrams and service manuals to locate trouble spots and make repairs. In larger and more complex instruments, such as those in churches and theaters, this may require a day or more of searching and testing.
Other types of repairers work on a variety of less common instruments. Percussion tuners and repairers work on drums, bells, congas, timbales, cymbals, and castanets. They may stretch new skins over the instrument, replace broken or missing parts, or seal cracks in the wood.
Accordion tuners and repairers work on free-reed portable accordions, piano accordions, concertinas, harmoniums, and harmonicas. They repair leaks in the bellows of an instrument, replace broken or damaged reeds, and perform various maintenance tasks. Other specialists in instrument repair include fretted-instrument repairers, harp regulators, trombone-slide assemblers, metal-reed tuners, tone regulators, and chip tuners.
Some musical repairers work as musical instrument designers and builders. They work in musical instrument factories or as freelancers designing and building instruments in their own workshops. Almost any type of instrument can be designed and built, but musical instrument builders most often craft guitars, banjos, violins, and flutes.
In addition to repairing, designing, or building instruments, those who run their own shops perform duties similar to others in the retail business. They order stock from instrument manufacturers, wait on customers, handle their accounting and billing work, and perform other duties.
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