Tuning Duplex

[Delwin D Fandrich]

----- Original Message -----
From: <Duplexdan@AOL.COM>
To: <pianotech@ptg.org>
Sent: November 16, 2001 11:21 PM
Subject: Re: Tuning Duplex


>
> As to your inference that the duplex was developed as a marketing ploy a
> deeply grieved . That you are suggesting that Hermann Helmholtz, the
greatest
> physicist of the world, in his time, and CFT Steinway the greatest
inventor
> of piano design features collaborated in a marketing ploy .....

Dan, you've made several references to Helmholz's direct involvement in the
invention and development of the tuned duplex stringing system. What
evidence do you know of the he actually had a direct hand in this work?
Other than his general work in acoustics being used by Steinway as a
reference, that is.

Del