[pianotech] Echo issue

[Andrew Anderson]

Matthew,
Kawai uses (or used) a rust inhibiting grease on strings to  
"tropicalize" their pianos.  Thorough cleanup of the affected area and  
damper felt replacement will solve the visual issue.  Be sure to check  
damper follow-through before saying that it will fix the aural issue.   
The dampers should follow the strings when you press on them.  The  
damper pedal may be too close or the damper springs set too light on  
the strings.  Need for wholesale adjustment is unusual but not  
impossible.  I'd look the whole situation over a bit.  Is there an  
issue with the damper-lever-bar mounting, is the pedal too close etc.  
before readjusting all of the dampers in the section.

Good Luck,
Andrew Anderson