Founding a Family of Fiddles
Research and new fiddles
The problem of applying basic research results to actual design and construction
of new instruments now faced us. From the previous ten years' experimentation,
the following four working guides were at hand:
- location of the main body and main cavity resonances of several hundred
conventional violins, violas and cellos tested by Saunders and others,
[Ref 1, 4 - 9]
- the desirable relation between main resonances of free top and back plates
of a given instrument, developed from 400 tests on 35 violins and violas during
their construction, [Ref 2, 10, 11]
- knowledge of how to change frequencies of main body and cavity resonances
within certain limits (learned not only from many expertments of altering plate
thicknesses, relative plate tunings and enclosed air volume but also from
construction of experimental instruments with varying body lengths, plate
archings and rib heights) and of resultant resonance placements and effects
on tone quality in the finished
instruments, [Ref 2, 4, 11]
- observation that the main body resonance of a completed violin or viola
is approximately seven semitones (quarter notes) above the average of the
main free-plate resonances, usually one in the top and one in the back plate
of a given instrument. [Ref 2]
This observation came from electronic plate
testing of free top and back plates of 45 violins and violas under construction.
It should not be inferred that the relation implies a shift of free-plate
resonances to those of the finished instrument. The change from two free plates
to a pair of plates coupled at their edges through intricately constructed ribs
and through an off-center soundpost, the whole under varying stresses and
loading from fittings and string tension, is far too complicated to test
directly or calculate. [Ref 12]
Author, Carleen Maley Hutchins - In addition to nurturing her fiddle family,
the author shows interest in children. After graduating from Cornell she
taught for 15 years in New York schools, acquiring an MA from New York
University meanwhile. She also acquired a chemist husband and two children,
all of whom live in Montclair, NJ.
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