I can't answer your question - I have 1 or 2 Soloelle rolls too, and
concluded that they are for some specific reproducing/expression system
that hasn't been documented.  I've always wondered.

What I *CAN* offer is to check your titles against the Billings
rollography for word rolls (I bet they're all from QRS master) and
against my own QRS Autograph Roll Master List which documents all the
QRS Autograph rolls (hand-played QRS rolls w/o word) and includes both
the popular and classical roll series (80000 & 90000 are classical, and
100,000 200,000 etc.).

Anybody got a clue on the expression system of these rolls?

-Rob DeLand¶
(deland_robert@macmail1.csg.mot.com)