[CAUT] scaling a Tyre harpsichord?

Fred Sturm fssturm at unm.edu
Tue Jan 4 16:42:16 MST 2011


On Jan 4, 2011, at 4:19 PM, Paul T Williams wrote:

> It transposes to 415 and tuned to 440.  So, me thinks it is supposed  
> to be at this higher tension...


I just ask because, first, been there, done that (tuned to 440 not  
knowing it was built to 415); and second, Tyre would have a well- 
scaled instrument, unlikely to break strings more than occasionally.  
Changing the gauges isn't likely to solve the problem. But checking  
some lengths and scaling is a good starting point, to see how it  
stacks up. There isn't a whole lot of variation, except when you come  
to how much the instrument is foreshortened, and so where the brass  
starts and how thick it gets. That is, the high treble is pretty well  
all in the same ball park, for any instrument. Changing gauges will  
change tension, and raising gauges could cause structural issues (and  
change the timbre). But, as a very long-winded thread a while back  
demonstrated/illuminated, the notion that thinner wire is less likely  
to break for a given length and pitch is not very accurate. If there  
are differences, they are small and unpredictable.
Regards,
Fred Sturm
fssturm at unm.edu
http://www.cdbaby.com/Artist/FredSturm

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