humidity question (may be stupid but I'm curious...)

[kam544@flash.net]

>...a very controlled room, with
>humidity, temperature, etc. control.  How fast/slow do
>you think the piano would go out of tune varying
>degrees if it's not played much (i.e. less than 4
>hours a week)?
>Stephen Airy

 + / - 5 cents maximum pitch drift over a six month period

>...Keep the same piano...in the bathroom next to the
>shower... Would it be reasonable to say that,
>if someone takes a 15-minute (or long enough to
>totally fog up the mirrors) shower every day and runs
>heat lamps for a while (long enough to dry everything
>out) after the shower, once every day...how
>fast do you think it would go out?...

Very fast and extreme pitch drift whether used or not.

Keith McGavern
Registered Piano Technician
Oklahoma Chapter 731
Piano Technicians Guild
USA