Patrick, Matt, List: I searched the Journals on CD and found an article by Don Galt in the July 1979 issue in which he reports his findings of humidity-related pitch fluctuations in one piano over a period of several years. Interesting report. (Matt, you might want to read this.) But I didn't find anything with two pianos, one with a climate control system compared to one as a control. Did I miss something? I also searched for articles re: DamppChaser and came up dry (sorry!). There must be some independent data out there somewhere. Jerry Gravina, RPT Babylon, NY >I think one would first start by reading the available literature, >starting with articles in the Journal. There was an article by Don Galt a >few decades ago in which he tracked humidity and pitch variations between >a "control" piano (ie no system) and one with a DC system. I think they >were the same model, in school practice rooms. There were more recent >articles, some written by DC principals. It's pretty clear that they use >good methodology. >A couple years ago Roger had a "data loggers" demo at the CyberCafe (last >day of the Institute). There's very sophisticated, very reasonably priced, >equipment for tracking humidity and temperature at a wide range of >intervals (from seconds to weeks between readings), with accompanying >software [PC only, not for Macs :( ] which can graph the data. >I'm sure Roger would be willing to share the details with someone >interested in reduplicating his studies. On your own dime, no doubt. >Perhaps a good science fair project for your kids, or a research project >for a wood technology major. > >Patrick Draine
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