[pianotech] Steingraeber & Sohns leather key bushings

[Ron Nossaman]

Andrew Anderson wrote:
> I have a late 30s student piano (a0 to a7) traded into the store for 
> piano lessons.  The piano case shows some of the age, but when I got 
> into it I was surprised at how well made it is.  It tunes up beautifully 
> and plays great with a regulation close to the strings allowing very 
> fine dynamic control.
> 
> I'm wondering if the leather front key bushings are original?  I 
> wouldn't mind if they were a little tighter.  Is there an acceptable way 
> to "rejuvenate" leather in the context of a keypin?

Turn the pin(s). You're talking a "little" tighter, and if 
turning the pins a tad takes three years off the next seventy 
years of bushing life, it might just qualify as a acceptable 
compromise.
Ron N