Hi, I talked to Kent Webb today about some info needed for a school I'm working at and asked about the "grease" I found on the Boston upright piano strings Turns out there is an approved rust preventative utilized on Boston piano unwound strings. Pretty thoroughly applied from my observations. Evidenced by hammer felt and other detritus sticking to the strings. :-\ That's the end of that story. Getting these pianos stable with humidity varying 21% now from 72% Rh (+/- 5% by my instrument) in September is another story still being written. :-X Sincerely, Andrew Anderson
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