[pianotech] Tuning the duplex sections

[Andrew Anderson]

Mr Delacour,
In my experience when a piano is well tuned, power and sustain  
improves.  (There are some pianos where a well-tuned unison rapidly  
fades, presuming that isn't what we are talking about.)  In your  
example you said the piano was near pitch but not in-tune if I  
understood correctly.  Maybe this is where the difference lies...?

Andrew Anderson