Cleaning Soot from pianos

[Lorlin D. Barber]

I have a customer with a studio that has been through fire damage. No heat or
water, but a lot of soot.

Is there any PTG Jrnl articles from the past that cover this subject or offer
some insights into the most efficient way of cleaning out the action and
soundboard & interior case where soot resides?

Gratefull for any input.

Thanks Much!

Lorlin B., RPT :-)