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Long Arch shape
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CT Dolan
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Joined: 29 Jun 2008
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PostPosted: Fri Sep 11, 2009 4:04 pm    Post subject: Reply with quote

"Is there any indication that arching/graduation patterns also separate K's untrained hand from GdG's, or did GdG handle the sound production elements and allow K to work on the other parts?" - Good question!

Personally, I am not so concerned with graduation. For one, this is an aspect that has in many cases been altered over time, so there is only so much to go on here. What really interests me is who realized the outer form, the arching. As for me, I don't see anything in the arching which suggests the work of another, not that I am all that experienced, but I don't. What I do see is the gradual evolution of form one might expect from a single individual, a talent coming of age, so to speak. However, as for f-holes and heads, of course there is a lot going on here, many changes afoot! But with regard to the arch, not so much, but again perhaps I have not yet developed an eye for it...
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Andres Sender
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PostPosted: Fri Sep 11, 2009 5:25 pm    Post subject: Reply with quote

Yet this very issue arose as a result of the observation that the top long arches are atypical. Smile

I can imagine a conversation between Del Gesu and Katarina that might have led to that result. ...or perhaps it was just an example of a teacher encouraging a student to experiment with ideas that interest the teacher but that the teacher isn't willing to risk an instrument on. Now where have I seen that before... Wink
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Michael Darnton
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PostPosted: Fri Sep 11, 2009 6:09 pm    Post subject: Reply with quote

That sounds reasonable, Andres. Try it and report back. :-)
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Janito
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PostPosted: Fri Sep 11, 2009 8:11 pm    Post subject: Reply with quote

Ok, so help "The Slow One".

Is the proposition that K made some instruments soup-to-nuts?

If so, are her superlative violins that have survived 'flukes'?

Just checking, in case I am in for some luck.
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Michael Darnton
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PostPosted: Fri Sep 11, 2009 10:10 pm    Post subject: Reply with quote

"Soup to nuts"? Don't understand.

I don't think she was a fluke; I think she made great violins, for whatever reason. Good teacher, maybe.
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Janito
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PostPosted: Fri Sep 11, 2009 10:46 pm    Post subject: Reply with quote

I sometimes use cross-cultural idiomatic phrases, so I had to check.

Good news; "soup-to-nuts" is American-English:

http://en.wikipedia.org/wiki/Soup_to_nuts

In any case, I'm off to find my next teacher!
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Michael Darnton
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PostPosted: Fri Sep 11, 2009 11:22 pm    Post subject: Reply with quote

OK, I get it. Yes, I think she made them from one end to the other.

Something that you see through all of del Gesu's periods is a lot of concentration on arching. Other things can wander or get less attention, but his archings are always perfect renditions of what he's trying to do in that period (though they might not all work). If I were guessing about the ones I think are Katarina's, he probably left her entirely on her own, except when she was arching, and then came over around near the end and told her where to scrape at the end.

Otherwise, I don't see much of him in them.
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CT Dolan
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PostPosted: Sat Sep 12, 2009 12:34 am    Post subject: Reply with quote

Yeah, as I mention above the arching is the one area in which I see a single hand, or perhaps it would have been better said a single guiding influence. Michael, what you have suggested may make the most sense, and of course it need not have been an either/or proposition. After all, they were husband and wife, so one would expect some collaboration!
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Roger Hill
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PostPosted: Sat Sep 12, 2009 12:43 pm    Post subject: Reply with quote

Any thoughts on what GdG was thinking when he did the arches on the Kochanski? Very low arches and the minimum point of the edge fluting is much more inboard than those shown on the other posters of GdG's I have. In the hands of Aaron Rosand, this violin has highs as silky as those on any Strad recording I've ever heard. Thanks
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Michael Darnton
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PostPosted: Sat Sep 12, 2009 1:45 pm    Post subject: Reply with quote

The Kochanski is sort of coming out of a period where that is even more excessive, with some extreme examples around 1735-38 or so. You can see these in the Biddulph books, because they're the pristine examples (i.e., not worn out in the concert hall); arches as low as 13mm, and inexplicable amounts of scoop. I think that as he realized that wasn't working, he came slowly out of that into more effective styles, like the Kochanski, and then kept going further, resulting in the Cannone as the most extreme, and effective. Too bad he didn't make another dozen like the Cannone!
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Roger Hill
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PostPosted: Sat Sep 12, 2009 2:00 pm    Post subject: Reply with quote

Thanks, Michael. I also noticed that immediately after the Kochanski he did the Lord Wilton which has arches reminiscent of Strad, perhaps even higher. Maybe he concluded the old guy had the right idea all along.
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CT Dolan
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PostPosted: Tue Sep 15, 2009 4:20 pm    Post subject: Reply with quote

Michael Darnton wrote:
I use a circle for the back. A friend who's a well-known maker disagreed, telling me that a catenary fit all the del Gesus in the Biddulph book. I drew him out, on the computer, a circle against a catenary. They were exactly the same over that distance with that (minimal) curvature. I'd sort of expected that, but not to that extent. You can check that yourself: http://darntonviolins.com/images2/allcurves.jpg

For the top, I use a flatter circle between the widest parts of the bouts, then get down to the ends gracefully. The highest points of the top and back, both, are at the midpoint.

I extract as much data as I can from the poster and pictures, then try to fill in the blanks and generally straighten things out.


Michael, as I understand it you use the arc of a circle for the central portion of the top long arch, ending this at the widest point of the upper and lower bouts and from there taking it to the ends (of the top long arch) with a curtate cycloid. My question is, do you suppose all older Cremonese instruments were constructed as such? Because you use this method, I’m guessing you do, but might some of these instruments, such as the Ole Bull and Leduc that do not in our day have a pronounced “flat region” in the area of the bridge simply have been formed using a much closer focal point for this arc, taken out nearer ends of the top long arch? If this is true, might this be the reason they have retained their form, it being less prone to distortion from years of pressure? If so, how does one get it to speak well? Might elongated f-holes a prerequisite for opening up a top so constructed? What might be considered a decent focal point (what might be more normal than these extreme examples? Does Francios Denis’ discuss this in his book, or is there a design principle? Sorry, so many questions I’m not sure how to ask them all, but to me it seems a very important and little-understood topic, even among established makers.
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Michael Darnton
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PostPosted: Tue Sep 15, 2009 6:07 pm    Post subject: Reply with quote

Those are all possible good answers. I haven't thought much about them because I don't particularly like those violins, myself. I've always been more focused on the models that I thought I had a good chance of making good new violins on.
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CT Dolan
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PostPosted: Tue Sep 15, 2009 6:14 pm    Post subject: Reply with quote

Makes sense, thank you.
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