S&S D Duplex

[Bill Ballard]

At 9:05 AM +0100 11/26/02, Richard Brekne wrote:
>I would like to see the numbers for both the Hamburg C and B's. Could
>definatly give it a try. In fact I have two relatively good C's with
>decent sustain times side by side in our recital hall at the UiB. Could
>make for an interesting experiment.

Ric, It's too simple to get worried about. Theres only one fraction 
(say 1/3, 1/2)  of the speaking length which can comfortably fit 
between the back bridge pins and the hitch, and consequently only one 
proper interval.

I'm tuning by length not by pitch. There are too many unknown aspects 
of the bridge as a friction barrier to the strings, to be able to 
count on anything but an approximate tuning. This is the inverse of 
the bridges effectiveness as a coupler.

I'm also definitely trying my first one on a piano with individual 
aliquots. I'd monitor the curve of your aliquot bar (make a current 
photocopy of it), to guard against the possibility that the bar 
wasn't getting twisted/warped laterally during the stringing and 
chipping. The final aliquot placement should be right before the 
first at-pitch ship.

Or at least, that's how I'd do it, if I wuz doing it.

And I'm hoping for back lengths as long as possible.

Let's meet back here when someone's actually done something.

Bill Ballard RPT
NH Chapter, P.T.G.

"Can you check out this middle C?. It "whangs' - (or twangs?)
     Thanks so much, Ginger"
     ...........Service Request
+++++++++++++++++++++