Backcheck noise

[Ron Nossaman]

> Click like but not exactly a click.  Hard to describe.
> 
> David Love

A sort of "chiff" maybe? How rough are Steinway tails these 
days? We don't have a dealer here, and I don't see many new 
ones. Besides the possibility of glue under the leather, and 
the drop of CA at the wire entrance points of the check head 
and key, I'd smooth the tail on a noisy one, then wire brush 
the check leather to see if either made a difference. One 
thing at a time, test, etc.
Ron N