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Myths, misconceptions
and
personal thoughts
about
Banjo Bridges
(updated
September 2007)
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A number of things about banjo bridges
seem to have been taken for granted and have become
"truths" over the years. Here are some of my
favourite ones:
Taller = Louder
- This one's mostly for the five string crowd - if
that was true then how come 3/4" tall
bridges are no longer popular? Why not make them
1 inch tall? Most modern banjo manufacturers have
settled on 5/8" tall bridges for good
reasons: performance and playability for both
four and five string banjos. Some four string
banjos are still geared for 1/2" bridges
while some five string banjos, and their players,
have come to prefer 11/16 inch bridges. A lot of
research and trial and error experiments by many
bridge makers, including myself, have concluded
that the facts simply do not agree: Taller =
Louder simply is not true. The how's and why's
are dealt with elsewhere on this website but
basically, if you went up to an 11/16" from
a 5/8" and found your volume increased your
banjo wasn't tweaked to the max for that bridge.
Applying a finish spoils the sound/tone
- Four and five string - banjo bridges must not be
finished with anything - no wax, no oil, no
lacquer, no varnish, no whatever because
according to the myth any finish will negatively
affect the sound and/or tone. Well, so the saying
goes nayway. Some claim that a finish will
increase the bridge's weight - hmmm, how much
extra weight might there be? I had a couple of
bridges weighed on one of them super accurate
scales at a pharmacy in September 2007. Same
bridge before and after the oil finish (after
having the oil had dried & cured for one
day): identical weight on a scale as accurate as
0.01 or 1/100 of a gram. I don't mind admitting
folks, I cannot produce bridges that are that
close in weight from one bridge to the next due
to the grain and the density of the wood never
being the same and all. Expecting any bridge
maker to adhere to 10 milligrams as a
production/shop tolerance would simply not be
realistic.
- Some claim that there's no place in bluegrass for
finished bridges. Hmmm, my name isn't Bill Monroe
so let's just leave it at that. . .
- A properly applied finish does not affect the
sound and/or tone, whether good, bad, or
indifferent. Maybe it's because Bridges by Bart
are more special than even I had thought... I can
appreciate it though that someone might want to
skip the finishing step when making a bridge -
it's smelly, sticky and no matter how careful you
are, it always turns out to be a real messy job
that takes a lot of extra time for the finish to
dry and cure before you can package the bridge.
Cosmetically though, you just can't beat the
beautiful grain of an oil finished bridge.
Bridges can only be ebony topped maple
- Mostly in the five string world - maple/ebony is
the only combination for traditional bluegrass
sound. Hmmm, then what's the hubbub about cherry,
walnut, birch or cedar - they seem to be quite
popular. Then of course, there's the
sunken/submerged maple - marvelous wood to be
sure but when you read about it having altered at
a cellular level then, well, then it's no longer
maple, is it. . . To some ears maple/ebony indeed
is where it's at. No problem because personal
taste is hugely important. You'd do your ears a
favour by checking out some of the other woods
because there are many species that offer
superior performance that maple simply cannot
match.
Bridges must have three feet
- In the early days two footed bridges were very
popular and, in the four string world, they still
are. Early Gibsons used to have two footed
bridges, 3/4" tall at that. This is
something four string players have known about a
long time: with two footed bridges there's more
head vibration than with the usual three -
something well worth considering...
All bridges sag in the middle
- Yes, this actually is often true and more so for
two footed than for three footed bridges. From a
bridge maker's perspective this is a non-issue
because all you need to do is to either radius
the top or make the center leg a little taller.
Taller by how much? Just measure the sag of a
worn out bridge and voila, that's how much taller
the center leg needs to be. Then why aren't banjo
bridges made like that from the get go? Dunno, I
can't speak for the other makers but it's always
been a standard feature for all the three footed
bridges I make. I guess it comes down the the
same thing as with the finishing myth: it takes
longer and it's more work...
- On the two footers there's a bit of sag on some
of the ones I make, sometimes. Most of them out
there that haven't shown any sign of sag even
after several years of service - the operative
word in hardwood is hard. On the
other hand, I've always been quite up front about
the fact that I consider bridges a consumable
item - meaning that I don't expect them to last
forever. They might chip, crack along the grain,
snap, get crushed by the lid of your banjo case,
or whatever. If a bridge lasts longer than one or
two years - bonus. Guess what though, I've been
making bridges for quite a while now, seven years
anyways, and haven't had any failures reported to
date.
Don't sound right? - you need a compensated bridge
- For five stringers again - this one actually
worries me. I hear it all too often and there's
never really any mention of what string(s) need
compensation and by how much. Some compensated
bridges are notched, at a non-descript dimension,
at the third string yet the most common
complaints about intonation focus on the 2nd
string. Some stagger all strings, some make the
second string compensate in a negative direction.
Sorry folks, "about-this-much" just
don't cut it when addressing the intonation
problems of your banjo
eventhough it might have been OK for someone
else's. The only way to address intonation
problems is on a case by case basis. How? Check
the Sweet Spot routine on one of the previous
pages - it's good enough for several millions of
guitar players and totally applicable to banjos
but if you prefer to keep playing out of tune
that's cool by me.
The second string is always out of tune
- Another classic in the five string world: not so
- all you need is a properly positioned bridge
and/or a custom compensated bridge as in the myth
above.
Personal Philosohpy
- Too big a word really but my thoughts about
designing and making bridges is pretty straight
forward: shoot for the best sound, tone and
playability and if that means turfing tradition
and/or convention then so be it. Of course, I can
make maple/ebony bridges so if that's what you
really want/need, not a problem. I do however,
much prefer to offer you something that'll let
you exploit your banjo's capabilities to the
fullest and allow you to bring out the best of
your musical potential.
- I received an email from someone recently (Aug,
2007) who mentioned they were real surprised and
impressed that such a thin top bridge could have
such a full sound. Yup, sure made me gloat as I
take a lot of pride in the work I do. I don't
consider my bridges thin although they are in
fact thiner then many others. I design them for
max performance and if they don't need to be
thick then why make them thick - no excessive
mass to absorb, or get in the way of, sound
transmission. Lean and mean, kinda like racing
cars compared to mini vans.
All in all, the whole point I'm trying to make is that
it pays to be open minded when it comes to banjo bridges
and certainly, to acknowledge that personal taste plays a
huge role. Realize that often playability is more
important a factor than sound/tone when it comes to
shopping for a new bridge. Most of the things I pointed
out here were aimed at the five string world because like
it or not folks, four string players are miles ahead of
us five stringers - they tend to look for sound and
performance regardless of the way it's
"packaged" instead of insisting on tradition.
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