strict temperature effects

[Wimblees]

In a message dated 98-03-11 11:27:03 EST, you write:

<< Can anyone help me with a little research project I am pursuing? I am
 trying to figure out the effect of temperature changes on the pitch of a
 piano. We know that changing the temperature of the air will normally
 change its relative humidity, hence the moisture content of the soundboard,
 and hence pitch. My question is, if relative humidity were kept constant so
 that no soundboard changes occurred, what happens to the pitch of a piano
 when its temperature is raised? Does it go sharp, or flat, or not change?
 I’d be happy to hear about a) any speculations or theories; b) any
 empirical data or experiences; c) anything written on the subject. Thanks.
 Jim Payne, RPT Sandpoint, Idaho: jlpayne@netw.com >>


For a detailed explanation of this, write to Jim Ellis, in the Knoxville
Chapter. Jim gave an excellent class on this subject at the Albuquerque
convetion. Being a detailed type person, I am sure he has an outline on this. 

Willem Blees  RPT
St. Louis