To
Infinity and Beyond
New
directions in classical guitar design and construction
By
Teja Gerken
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Spalted maple soundhole rosette detail
from a Jeffrey Elliott guitar.
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As the direct descendant of the traditional Spanish guitar,
the nylon-string classical has inspired decades of discussion
about what constitutes a successful design. While luthiers and
players alike were once critical of anything that deviated from
the basic design developed by Antonio de Torres at the end of
the 19th century, today there is a growing sense of experimentation
and acceptance of more contemporary instruments. I recently
talked to a group of luthiers who specialize in nylon-string
instruments and whose work represents a colorful cross-section
of the various contemporary approaches to building. I asked
these industry leaders about the innovations they’ve used in
their own guitars and where they think the classical guitar
as a form is headed.
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An
R.E. Bruné classical with
cypress back and sides.
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Keeping Up with
the Players
Over the past 30 years, classical guitar departments have been
sprouting in universities like wild mushrooms, and general guitar
pedagogy has been elevated to new heights--the level of playing
today is higher than ever before. "The demand of the players on
the instrument is much more sophisticated than it was 20 or 30
years ago," says Richard Bruné, who started building guitars
in 1966 and was among the first American luthiers to specialize
in the classical guitar and to receive the acclaim of international
players. "When I moved to Chicago in ’72, somebody who could actually
stumble through a piece without faltering was considered a ‘good’
classical guitarist," he says. "Today, people are compared against
some of the best recordings by some of the top artists in the
world." As a result, players want instruments that won’t hinder
their virtuosic expression.
There are, of course, many different opinions about what constitutes
the ultimate classical guitar. Some makers feel that it has already
been built and that it is important to focus on what has worked
well in the past. "A great guitar, such as a Fléta built
30 years ago, is still a great guitar and a huge inspiration to
me," says Australia’s Jim Redgate, who nevertheless likes to experiment
with radical building techniques. Similarly, Gila Eban points
out that some early ’70s Ramírez guitars are "extraordinarily
loud, and still have a beautiful clear sound," qualities that
are valued by contemporary players. Eban began making guitars
in the late ’70s, and though she strives for a sound that resembles
her favorite Spanish guitars, she incorporates Michael Kasha’s
unique design concepts into her instruments.
Other luthiers feel that guitar design has only scratched the
surface or, even worse, has kept the music from evolving. "The
classical guitar world missed out on the major-league 19th-century
and early–20th-century composers, simply because the guitar didn’t
have enough volume to be an ensemble instrument," says Thomas
Humphrey, a self-taught guitar maker who emerged from the lutherie
boom of the early ’70s and is best-known for his unique, elevated-fretboard
Millennium design. "I believe that the time of great, immensely
popular, and high-quality composition in classical music is going
to come again. And this time around, due to the immense popularity
of the guitar, we need to do our very best to be prepared."
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Gila
Eban's Kasha-inspired design.
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Pumping Up the Volume
Players’ requests for more volume were cited by every maker I
talked to. Redgate agrees with Humphrey that more volume is needed
to make the guitar competitive with other orchestral instruments.
"Greater volume gives a better range of dynamics and tone colors
to the instrument," says Redgate, "and many performers and audiences
still prefer the unamplified sound in concert. Increasing the
volume also allows the guitar to work effectively in chamber music
with other types of instruments, and composers are beginning to
consider the guitar as a ‘serious’ instrument."
Highly respected American luthier Robert Ruck, who has built
more than 700 instruments during the past 30 years, says that
players seek instruments with more brilliance, in an attempt to
be heard better, but then get tired of the tone and go back to
more mellow guitars. "When a guitar is very brilliant, it feels
as though it is cutting through the deadening effect of the audience
and the conditions," he explains. "Around 20 years ago, a lot
of the top players gravitated toward instruments that were very
bright, and it generated a need for that. Brightness, however,
is only satisfactory up to a point. Players have to live with
this sound many hours a week, practicing. So then they compromise
with a more sympathetic, sweeter-sounding instrument--something
with more responsiveness that gives them joy in the confines of
a small room."
Bruné is also concerned about a boost in volume that comes
at the cost of tone. "Whatever minute gains [in volume] you make
by radical alterations of other elements, you make at the expense
of some of the other essential elements of color and dynamic range,"
he claims. "The amount of extra volume you might achieve is so
miniscule, it’s completely lost on the average audience in a typical
hall."
Some luthiers feel that instead of trying to get the maximum
volume out of a guitar, it’s better to build the instrument with
optimum tone and take advantage of modern amplification systems,
such as pickups and high-quality microphones. "Electronics are
improving so much that loudness has become less of an issue,"
says Eban. "I don’t think anyone can increase the loudness of
the guitar to the level of a violin or a trumpet and still keep
the original sound. But with developments in electronics, this
may be possible."
Jeffrey Elliott, who has been active since the ’70s building
fairly traditional instruments as well as special guitars for
crossover players, concurs and stresses that luthiers should consider
amplification when designing an instrument. "If modern classical
guitarists are going to continue to play in large halls with 2,000–3,000
seats," he says, "they’ll need an instrument that amplifies well
and is an honest classic-sounding instrument. More and more are
amplifying their guitars."
Manuel Rodriguez Sr., on the other hand, is skeptical about using
amplification for serious concert work. He continues the traditional
art of hand-building guitars he learned in Madrid in the 1940s
and has also become a major producer of factory-made nylon-string
guitars. Even though the Rodriguez shop offers a number of acoustic-electric
models in its factory-made line, he says, "these are not for the
pure classical music player."
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Kasha-style
bracing system inside an Eban guitar.
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Rethinking the Soundboard
In addition to heeding the demand of many players for a louder
guitar, luthiers are always working on ways to improve the tone
of their instruments, and much of that tone is determined by the
soundboard. Soundboard design was advanced significantly through
the work of Australian luthier Greg Smallman, whose instruments
were brought to international attention by the great John Williams.
Smallman’s guitars feature extremely thin tops braced in a lattice
pattern (as opposed to the standard fan pattern devised by Torres)
with carbon fiber–capped balsa wood, combined with heavy backs
and sides. A thicker ring around the perimeter of the upper bout
inhibits the edges of the top from vibrating and changes the way
the top interacts with the sides.
Other Australian guitar builders have followed Smallman’s lead
and are building innovative and muscular classicals. Jim Redgate
uses a similar approach to bracing but has developed his own design,
which is the result of his desire for a more traditional sound.
The thickness of Redgate’s tops falls somewhere between traditional
and more radical designs, and because he designs the entire top
to vibrate, he feels that his guitars have a fuller sound with
a richer bass. "With carbon fiber–reinforced strutting, the material
will not distort over time," he explains, "so the supporting structure
for the soundboard can be made more flexible and open-sounding
right away."
Humphrey is also an advocate of lattice bracing. "I’ll go so
far as to say that Torres was only half right," he proclaims.
"Had he left the bracing that was in the guitars prior to his
time, the lute-style bracing, or ladder bracing, as it was called,
and simply added his fan bracing, he probably would have brought
the guitar 100 years ahead." Humphrey believes that lattice bracing
allows him to optimize the top to respond equally both with and
across the grain of the wood, leading to an increase in performance.
Past luthiers were forced to develop their designs slowly by
trial and error, but today’s builders can take a more scientific
approach. "A lot of the groundwork in sound production and power
has now been done," says Paul Fischer, perhaps the U.K.’s best-known
luthier, who has amassed more than 40 years of experience building
musical instruments. "The next task is to refine these benefits,
which can only happen through close study and analysis of the
work undertaken so far. The most important single improvement
has taken place with the soundboard bracing system--in particular
those braced on the grid system. The benefits of this can be further
enhanced by an understanding of the acoustic properties of the
body materials and their energy-efficient response."
Germany’s Gernot Wagner, who has firmly established himself on
the European scene, concurs: "To really determine the potential
and limitations inherent in the new designs, it would be necessary
to do methodical experiments with acousticians. Unfortunately,
this exceeds the possibilities of the individual luthier, so the
industry as a whole would have to become active." Wagner’s own
research led to a lighter top without any loss of strength. His
bracing is based on a fan pattern, but Wagner uses a sandwich
top consisting of two ultrathin (about .6 mm.) pieces of cedar
with a layer of Kevlar fiber in the middle. This reduces the weight
by as much as 40 percent, and Wagner says that the weave of the
Kevlar fiber gives him a structural effect similar to that of
lattice-style bracing. "The use of Kevlar gives me control over
the stiffness along and across the grain of the wood," he says.
Rather than delving into the high-tech world of carbon or Kevlar
fibers, Ruck prefers to work with different species of wood. "My
top is a composite of different woods used for different reasons,"
he explains. "In the past, we would see spruce as the predominant
bracing material for the main cross braces as well as the fan
bracing. I’ve moved toward selecting species––yellow cedar, red
cedar, Douglas fir––because they have very specific properties,
and those properties can be used to an advantage." Ruck is trying
to optimize fan-style bracing. "I use what I call a wide bracing
system," he says. "It is seven fan braces, but three of them are
very wide and very low, and they control the top in a very different
manner."
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A
Jim Redgate
eight-string.
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Modernizing Construction
Techniques
Spanish guitars used to be built practically freehand on a basic
workbench. Today, most luthiers rely on their own jigs and fixtures
to increase the accuracy of their work. While luthiers such as
Bruné and Elliott use an organic approach based on traditional
hand tools and techniques, others are embracing power tools and
advanced machinery. "The development of small, handheld machines––routers
as well as machines and tools designed by the makers themselves––has
speeded up the manufacturing process and improved quality," says
Fischer. Unlike steel-string guitar makers, none of the classical
builders I talked to have begun using parts made on CNC (computer
numerically controlled) machines, although Rodriguez is interested
in exploring the possibility for his company’s line of factory-made
instruments.
Redgate and Wagner stress the importance of building a stress-free
soundboard, and both use vacuum pressure to assist this process.
"I’m now using vacuum technology in soundboard construction to
glue bracing and build the soundboard into dished molds, so they
fit exactly into the sides," explains Redgate. "A relaxed soundboard
is free to move with no built-in tensions." Wagner also uses a
vacuum clamp to glue braces, and he uses vacuum pressure when
he glues the bridge to the guitar. Wagner relies on polyurethane
glues that don’t contain water or solvents (which can cause the
wood to swell or shrink). Redgate claims that the amount and type
of glue used for critical components can have a significant impact
on the sound and adds that his carbon fiber/balsa wood struts
would be "impossible without epoxy resin."
There are, however, some doubts about the longevity of guitars
built with space-age materials. "Many of those guitars are virtually
unrepairable or very difficult to repair without seriously invading
the originality of the instrument," cautions Bruné, who
has a lot of experience repairing guitars. "When I build an instrument,
I’m always thinking that sooner or later someone is going to have
to repair it or take it apart, and the instrument is either going
to survive that or be destroyed by it." Wagner agrees that his
guitars may not have the greatest longevity, but he feels that
superior sound and performance are more important than an indefinite
life span.
While advanced designs and new materials often go hand in hand,
Eban, whose guitars are perhaps the most radical-looking of the
bunch, pursues a traditional Spanish sound by merging contemporary
ideas with old-world techniques. "Nobody says that if I use Kasha
bracing, I have to use epoxy or Titebond," she says. "Within the
Kasha framework, I’ve been going toward the traditional stuff
like hide glue, French polish, and the very traditional ‘meat-and-potatoes’
spruce and Brazilian rosewood."
Environmental concerns also play a role in the choice of glues
and finishes. "I use a French polish finish," says Elliott, "but
the reason is not because I’m hung up on the traditional finish;
it’s because I don’t want to pollute and I don’t want to poison
myself. I also believe that of all the finishes, French polish
has the most appropriate affect on the sound. It’s easiest to
touch up, even though it’s more delicate to take care of, and
it’s the most beautiful."
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A
Paul Fischer Concert model with alpine spruce top and rosewood
back and sides.
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Appealing to Crossover
Players
Classical luthiers are also getting more requests for features
that appeal to crossover players (guitarists who combine classical
music with other styles like flamenco or jazz) and those who are
more used to the feel of steel-string guitars. Although they are
still not readily accepted among classical purists, cutaways are
beginning to be seen on some high-end nylon-strings. "I’ve made
a few cutaway classical guitars recently," says Elliott, "and
I think it’s partly because of people who are used to playing
14-fret instruments and find it a lot easier to play with a cutaway."
Ruck also offers a cutaway option on his guitars, but he feels
that most players are still skeptical. "It does give a guitar
tremendous ease and playability," he says, "but [players] haven’t
embraced it due to its asymmetry."
Two other increasingly common requests are narrower necks and
position markers in the side of the fingerboard. "Classical guitars
used in other genres will have a narrower neck than the classical
standard," says Elliott. "There’s some design crossover. It’s
a reflection of the way these instruments are being used to make
music." Redgate has fulfilled orders for each of these wishes,
and while he enjoys tailoring an instrument to a customer’s desires,
he is wary of the potential consequences. "There is still a largely
conservative body of classical guitarists who do not accept these
changes," he says, "and resale of a custom instrument can be a
problem for the owner."
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Using Alternative
Woods
A similar kind of reticence has prevented some builders from
experimenting with alternatives to traditional woods. "I have
used alternative woods since the mid-’80s," says Fischer, "but
only at a pace guitarists have been willing to accept." Redgate,
who has begun using native Australian woods on some of his guitars,
agrees, particularly since his instruments already break with
tradition. "In the classical field, there is only a certain amount
[of innovation] you can introduce at once," he says. Aside from
substituting Indian rosewood for Brazilian rosewood, due to its
increasing scarcity, Ruck hasn’t seen a need to use alternative
woods. "I have done a few experiments," he says, "but we have
good wood supplies. Because of the demand in recent years, there
are a lot of wood merchants." German luthier Dieter Hopf, who
can trace the lineage of instrument builders in his family back
to 1669 and combines this sense of history with a desire to improve
existing designs, remembers a time when even cedar was considered
unusual for tops. "Today, it’s not seen as a substitute, but as
an excellent alternative," he points out.
Elliott and Bruné have both used cypress (a wood generally
associated with flamenco guitars) for the backs and sides of guitars
designed for classical playing, and they feel strongly that the
woods used to build a guitar don’t have to dictate its future
use. Humphrey agrees and doesn’t feel stifled by preconceived
notions about which woods sound good. "I’m doing two guitars right
now out of some kind of a tropical hardwood," he says. "I have
no idea what it is, but it’s beautiful. I don’t give a damn about
the wood. The reason I don’t care about the wood is that I don’t
know guitarists that care about the wood. Virtually nobody calls
me and says, ‘I want a Brazilian rosewood and so on.’ They’ll
basically say they want a spruce or cedar top, but they don’t
give a damn if I make the body out of oak!"
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Going Out on a Limb
In addition to alternative materials and construction innovations,
even more unusual concepts are finding their way into today’s
classical guitars. Ruck is including soundports in the upper bouts
of his guitars, which give the player a more immediate experience
of the guitar’s sound. Hopf’s top model, La Portenosa, includes
small holes in the wings of the bridge, a feature that Hopf has
patented. In addition to saving weight in the bridge area, these
openings affect the overall sound of the instrument by blending
in different tonal qualities. In an attempt to create a smoother,
more natural-feeling neck, Hopf also laminates a thin veneer of
ebony around the back of the neck, eliminating the need for finish.
Several makers are beginning to double-drill the tie blocks of
their bridges, allowing the strings to be attached with a greater
angle over the saddle.
In a radical departure from traditional nylon-string neck design,
Redgate has been using adjustable truss rods in his guitars. He
also builds a slight amount of back bow into his necks, which
he then straightens with the double-action rod. "A preloaded neck
is stiffer and absorbs less string energy," he says, "which helps
the overall volume and tone of the guitar." Elliott likes to use
spalted woods for his rosettes and is taking more liberties with
his purfling and binding. "Segovia would never have stood for
it," he muses.
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Robert
Ruck
in his shop.
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Looking Ahead
It’s apparent that while their approaches may vary, today’s classical
luthiers are building some of the most advanced guitars ever made.
All their instruments, even those without unusual materials or
designs, are being built with more precision and with the experience
of several decades of modern lutherie. "If I were to define the
difference between the guitars we’re making now and the guitars
that were made 50 or 80 years ago," says Bruné, "at least
among American builders, it’s that we have the ability to control
our environment and our moisture content to a much greater degree
than any of the old makers. Much of the deterioration of
the older instruments that came from Spain and elsewhere is because
they had no way to control their humidity."
Although he enjoys the challenge of continually improving his
design, Ruck feels that his customers are "very happy with the
tone of the guitar. I haven’t heard from any players who have
said, ‘There just isn’t a guitar out there that has a beautiful
enough tone.’" While much of the innovation and progress is happening
at the high end of the guitar market, Rodriguez hopes that all
players will benefit from the field’s growing maturity. "Everyone
has the right to a nice instrument," he says, "from the beginner
to the concert player. It’s very important to create a future
for the younger generation. If we have nice instruments for beginners,
it will stimulate them to learn more, and perhaps they will become
professionals."
There are few limitations that contemporary luthiers haven’t
attempted to overcome, and it will be interesting to watch the
nylon-string guitar’s progress in the future. "If it’s conceivable,
not only is it possible, but it’s probable," says Humphrey. "That
is my philosophy of guitar making. Fifteen years ago, nobody knew
about using graphite fiber in guitars; now many people use it.
What does that mean for 15 or 20 or 50 years from now? What materials
will be used in the making of guitars that we haven’t even conceived
of? I believe that a guitar will be built that is as loud as a
piano and as beautiful as an unamplified guitar."
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LUTHIERS INTERVIEWED
R.E. Bruné
800 Greenwood St.
Evanston, IL 60201
(847) 864-7730
www.rebrune.com
Gila Eban
PO Box 95
Riverside, CT 06878
(203) 625-8307
members.tripod.com/handmadeguitars/3.html
Jeffrey R. Elliott
2812 S.E. 37th Ave.
Portland, OR 97202
(503) 233-0836
www.maui.net/~rtadaki/elliott.html
Paul Fischer
West End Studio
Chipping Norton
Oxfordshire OX7 5EY
England
(44) 1608-642792
Dieter Hopf
Platter Strasse. 79
65232 Taunusstein
Germany
(49) 6128-8014
www.konzertgitarren.com
Thomas Humphrey
1167 Bruynswick Rd.
Gardiner, NY 12525
(845) 256-0035
www.thomashumphrey.com
Jim Redgate
46 Penno Parade N
Belair SA 5052
Australia
(61) 8-8370-3198
www.ozemail.com.au/~redgate/
Manuel Rodriguez Sr.
Fender Musical Instruments Corp.
7975 N. Hayden Rd. #C-100
Scottsdale, AZ 85258-3246
(480) 596-7195
www.fender.com/rodriguez/rodrihome.html
Robert Ruck
5805 Minder Rd. N.E. #3
Poulsbo, WA 98370
(360) 297-4024
www.maui.net/~rtadaki/ruck.html
Gernot Wagner
Landgraben 19a
60388 Frankfurt
Germany
(49) 6109-23759
wagnerguitars@t-online.de
Excerpted
from
Acoustic Guitar magazine,
July 2001, No.103. That
issue also contained a feature story about the new generation of classical-guitar
vituosos, a profile of Pat Donohue, and more.
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