Tuning the Duplex (was ...Capo)

[Duplexdan@AOL.COM]

Kevin,

In the past fifteen years since I started tuning duplex scales I have heard a 
number of outstanding and upstanding technicians offer solutions to tone 
problems by attempting to negate or obviate the duplex scale components. In 
the past few years so many great instruments have been put on the market such 
as the Faziioli and the new Mason and Hamlin with duplex scale innovations 
that i am disappointed that technicians continue to disrespect the feature. 
Steinway made it clear in his patent and in his pianos that this feature 
contributed a critical component to the singing tone of the piano. And dozens 
of manufacturers have utilized his ideas in their own characteristic way to 
improve the tone of their instruments. Before putting masking tape and felt 
mutes on a piano you may find it illuminating to tune at least one duplex 
scale properly and compare the tone pre tuning to post tuning of the duplex 
scale. I believe you will find that tuning the duplex scale enhances the 
purity of the tone quality and dramatically lengthens the sustain.

Respectfully,

Dan Franklin