Steinway upright--verdigris?

[John M. Formsma]

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Looked at an old Steinway upright today which has a few sluggish keys. Did
some of the older Steinway uprights have problems with verdigris, or was
that limited to grands?

The customer says that the sluggishness of the keys varies with humidity, so
if verdigris is not one of the causes, I know how to deal with humidity.

Thanks for your input. This is the first old Steinway upright I've had to
repair.

John Formsma


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