Robbie, from your comments you seem to think of the Triphonola as a
pedal player.  In fact, it is a full reproducing piano made by Hupfeld
from 1918, the successor to that firms 'Dea' system.

I have restored a number of Hupfeld player pianos bearing the 73-note
Phonola action and the 88-note Phonola/Solophonola action; these
included pianos by such makers as Bluethner, Broadwood and Gors and
Kalman.  They all performed very well, in fact, better than any of the
other makes that I have restored.  They left the likes of Aeolian
Pianolas at the starting line.  They are very responsive and expressive
through the pedals.

I have also restored a number of Phonoliszt pianos: a 77-note scale
based on the 73-note Phonola.  This instrument is an expression piano
that, in my view, expresses very well.  The only Dea that I have ever
seen in the flesh, so to speak, was the one that was sold at the
auction held at Christies in London when Claes Friberg sold his
collection.

Jonathan Holmes

 [ Thanks for enlightening me, Johnathan.  Perhaps the only Hupfeld
 [ Dea in the USA performs at the Merle Norman Museum in Sylmar CA
 [ ("San Sylmar"), and it is indeed impressive.  -- Robbie