[pianotech] pitch of a piano

[Ron Nossaman]

On 2/25/2013 2:45 AM, tnrwim at aol.com wrote:
>     the strings heat up and go flat.
>
> I think this is where the difference in opinion comes from. Strings
> themselves will go flat when heated up. But when the whole piano is
> heated, which causes the soundboard to expand, the pitch will go up.

No, it won't.
Ron N