Pierre Eich "Solophone" rolls play piano, several ranks of pipes,
and (in very few instruments), drums.  "Harmonica Jazz" or "Accordeon
Jazz" play either an accordion, or sets of accordion reeds mounted
in a sounding box, and percussions.

Solophone rolls have limited piano expression.  In one instrument
that we restored, the piano normally plays at a softer level, and is
tied in with the swell shutters.  When the shutters open, the piano
gets louder too.  Not all Solophone instruments have this expression
pneumatic on the piano stack.

Pierre Eich used pipes supplied by the same company that supplied
Hupfeld, Philipps and others.  Playing classical Pierre Eich rolls,
the Solophone sounds like a German orchestrion, with shutter control,
solo capability, separate melody/countermelody sections of pipes, and
tremolo.  Playing Eugene DeRoy rolls, it sounds more like a Belgian
dance organ with a piano.

A fully restored Solophone is a great orchestrion.  Personally,
I wouldn't expect much from a piano playing Solophone or Accordeon Jazz
rolls without the added instrumentation.  To really hear what's on the
rolls, you'll need the full combination.

Art Reblitz