This article is from the Piano Purchase and Maintenance FAQ, by Isako Hoshino firstname.lastname@example.org with numerous contributions by others.
For more detailed information regarding any technical aspects
of piano ownership, there is no better place than the Piano
Technicians Guild (PTG). This FAQ is a very "brief" extract
of what is available from them, and should be treated as
such. If there are any discrepancies between what is said
here, and what is said by the PTG, PTG is probably correct.
:) If you can't find the information you're looking for in
here, or want to learn more, they will probably be able to
The home office of the PTG is located in Kansas City, MO, and
apparently keeps the usual 9-5 business hours. There are
also local PTG chapters located everywhere. Check in the
phone book for a PTG chapter nearest you.
Here are some methods to contact the home office. The PTG's
www home page has many interesting and useful materials. I
highly recommend that you take a look, if you haven't done so
Kansas City, MO 64111
tel: (816) 753-7747