Steingraeber factory pictures, bridge agraffes & adjustable vertical hitchpins

[Ron Nossaman]

> This would be a candidate for some impromptu investigation with the 
> high-speed imaging equipment I'll have in Rochester....if there happens 
> to be any guinea pig bridge agraffe piano available. I don't recall 
> seeing mention of one being taken to Rochester though.

Yes, it certainly would. A bench setup with a monochord might 
be informative too, comparing angled, horizontal, and vertical 
terminations. It wouldn't be the same lossy mounting as a 
bridge on a soundboard (though that could be very roughly 
simulated too), but should give some indication as to whether 
bridge termination angle affects string excursion direction, 
and by what degree. You still have a monochord lying around 
there somewhere don't you?


> Might also be interesting to compare the motion of the strings with a 
> Wapin bridge set up to conventional bridge pinning.

Necessary, I'd think, for what could be learned. It would be a 
good chance to attach some real observation (one way or 
another) to the sea of "I've heard", and "In theory" "truths" 
that abound with no observational evidence or rational 
argument supporting them.

Ron N