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shrinks too much, it will crack. Instruments with large soundboards, including
hammered dulcimers, are more vulnerable to the dangers of swelling and shrinking
than those with small soundboards (such as guitars or violins). So don't assume that
because your guitar has done fi ne in your climate, your hammered dulcimer will
too!
e challenge for the instrument builder is to make a soundboard that can
accommodate the widest possible variation in humidity without problems. Before
we glue up a hammered dulcimer, we equilibrate the soundboard and back in a con-
trolled environment to a relative humidity of 43% to 45%. Our years of building
these instruments and recording humidity data have shown that this approach ac-
commodates the widest range of real-world humidity conditions without problems.
As is true with most wooden musical instruments, your instrument will be happiest
in a relative humidity range between 40% and 50%. It may do all right outside that
range, but the farther you go in either direction, the greater your risk of damage.
So if you live in a dry climate, or are experiencing a cold spell, you should
humidify your instrument, either by keeping it in a humidifi ed room or by using an
instrument humidifi er.
If you humidify the room, or your house, the only way to be certain your hu-
midifi er is maintaining a safe range is to place a hygrometer (a device that measures
relative humidity) near your instrument and monitor the readings. Inexpensive
hygrometers can be purchased from Dusty Strings or from many music stores. Give
us a call if you need help fi nding one.
If you do not have a hygrometer, or if your room humidifi er is not suffi cient,
you should store your instrument in its case with an instrument humidifi er.
are also available from Dusty Strings or most music stores. Put your dulcimer back
in the case with the humidifi er when you're not playing. Check that the humidifi er
is still moist. Rapid swings from dry to moist are hard on any instrument. Once the
ambient humidity reaches a safe range, around 40%, take the humidifi er out. Too
much moisture will cause swelling and warping.
Keeping your instrument properly humidifi ed is an excellent way to ensure
longevity, and is really the only type of maintenance that your hammered dulcimer
requires beyond tuning, cleaning, and replacing an occasional string.
Transporting Your Dulcimer
We have padded, zippered, cordura cases with shoulder straps to fi t all our
hammered dulcimers.
dents and dings in most transport situations. In car travel, just be sure to load the
dulcimer on top of your other gear, bridge side up, where it won't shift; or stand it
on its top rail (with case handle up), braced so it can't fall over. If you're driving for
a distance with the sun beating down through the windows, throw a space blanket
over your dulcimer to refl ect the sun.
10-20% cooler. Please be sure to read about the danger of leaving your instrument
in a parked car under General Care (page 5).
6
ese work quite well for protecting your instrument from
e temperature under the blanket will stay
ese