<html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> On 5/15/2012 5:57 PM, Ron Nossaman wrote: <blockquote cite="mid:4FB2FB83.7030709@cox.net" type="cite">The only way it will mean anything is if it is done as a master tuning by a test committee on a piano previously tuned by a test committee as a master tuning at a significantly different RH%, and the recorded tunings compared. </blockquote> And, I presume, these two tunings are to be done by the SAME committee. Otherwise you've introduced a new variable other than humidity. And hopefully, none of them are hungover on those particular days, at least not unless they are always hungover the same amount. Susan </body> </html>