[ Mark Kinsler wrote in 040131 MMDigest:

> But the wood of a piano is probably not an approved insulating
> material, so the court could rule that the fatal piano could not
> be considered a double-insulated appliance, so the three-prong
> plug would have had to have been used.

And, with the Duo-Art "push-pull switch", if you were going to ground
the piano, I guess you would have to somehow attach a ground wire to
that switch.  Unfortunately,  so far as I know, modern replacements
are not manufactured,  and I don't know how you would attach a ground
to that switch.

Barry Dennis