John,
I value all your fire experience. Thanks for your comments.
I did have my piano tech take every key out and wash all of them off. He has already gotten his expense estimate approved by Servicemaster. He will work on the piano again after the ozone is done and look at everything inside. If this process has taken a little over a month from his first cleaning through the ozoning to his second look at the piano, I hope some forecasting can be done for my piano's future.