Seek for Phonola-vorsetzer, 88 tones (full scale) with Solodant,
built by Fa. Hupfeld, Leipzig, (also named: Meisterspiel-Phonola)

Wolfgang Heisig

 [ MMDer Wolfgang Heisig makes piano rolls for Solodant/Themodist, and
 [ he gives frequent concerts using the Vorsetzer which he borrows from
 [ Juergen Hocker.  I suspect that almost any good 88-note push-up
 [ player could be fitted with the extra components, to make it into
 [ a Solodant.  But 88-note push-up players, of any kind, seem to be
 [ very rare.  Any suggestions for Wolfgang?   -- Robbie