Hi All, I built an "O" roll orchestrion for the Ashorne Hall
collection, (now in the hands of Retonio Galleries, Switzerland).
It included a rank of flutes and a rank of reeds, glock and xylophone,
and a full range of percussions. It would take too long to explain how
I did it but it was a great success and crowd puller at Ashorne.

Suffice it to say that on the O-roll frame I was using there were
90 holes in the note run.  I utilised the extra two holes to operate
electric relay lock and cancels which gave me the additional switching
facilities.  Of course, it's necessary to doctor the rolls a bit, but
it does not affect their playing on standard O-roll systems.  Anyone
wishing to know more can e-mail me privately.

Paul Camps