[CAUT] scaling a Tyre harpsichord?

[Paul T Williams]

I think it's pretty close.  some of the older repair string sizes are a 
bit smaller diameter.  I haven't checked the whole thing yet.

Thanks
Paul




From:
Conrad Hoffsommer <choffsommer at hotmail.com>
To:
caut <caut at ptg.org>
Date:
01/05/2011 10:15 AM
Subject:
Re: [CAUT] scaling a Tyre harpsichord?



Looks pretty familiar.  Does that stringing schedule I sent bear any 
resemblance to what you've found?

Conrad Hoffsommer




To: caut at ptg.org
From: pwilliams4 at unlnotes.unl.edu
Date: Wed, 5 Jan 2011 08:44:28 -0600
Subject: Re: [CAUT] scaling a Tyre harpsichord?

Fred et,al. 

I'm very much appreciating all the input.  Here are some photos of said 
beast.  Do any of you see anything funny about it?  If you want some more 
photos, I'm literally 50' from it as I sit. 

Thanks 
Paul 




From: 
Fred Sturm <fssturm at unm.edu> 
To: 
caut at ptg.org 
Date: 
01/04/2011 05:42 PM 
Subject: 
Re: [CAUT] scaling a Tyre harpsichord?




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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