[pianotech] Pitch raising

David Boyce David at piano.plus.com
Sat Dec 12 10:03:51 MST 2009


 >One thing I do is to back the string off, or lower it until the pin 
moves a good amount:

Yes, good idea. If there is any bond between the string and bearing 
points - V-bar, pressure bar, agraffes - moving the string will mean 
breaking that bond, and doing so in the direction of lowering tension is 
less likely to lead to a string breaking.

It's a good idea also to apply a tiny quantity of Protek CLP or other 
suitable lubricant to each bearing point.

Best regards,

David Boyce.


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