Dear Craig;

Thanks for the response to my question.  I in turn have a couple of
questions:

   1) How is 25% vacuum loss arrived at?

   2) Wasn't the Ceclian a foot pumped piano player of 58 notes that
      operated both pnuematics that played the piano as well as
      contained a reed organ?

   3) Did the 58 note range of that push up compensate for the vacuum
      loss of having both a piano stack and reed organ, or did it not
      use a vaccum motor to turn the rolls?

As far as I know, the only standard American roll that was arranged for
single strike xylo or bells was the Clark 4x roll (or Automatic 900
series).  I would imagine that with a tight atmosphere side valve
seating and a tight pnuematic job, single strike would be the best and
the most vacuum efficient way to go even for non-single stike rolls.
Any further comments?

SKG