I have a complete (I believe), working (I hope) Pianocorder system
that I would like to install in a small grand.  I have the original
installation and service manual, but it refers only to installations
in uprights.  I believe there was a supplement that dealt with the
procedural variations for grands.  Would anyone have this available
for photocopying or purchase?

I am also interested in the "owner's manual," since I am missing this.
(Although I expect it is rather rudimentary compared to the service
manual!)  Any help would be much appreciated (including horror stories,
warnings, encouragement, etc.)!

Michael Hartford