Hi MMD friends,  I am trying to help out a friend who needs a Recordo
expression box.  I know that there are probably several different ones
but since his piano is missing the unit, he is interested in finding
out what is available and proceeding from there.

It looks like what he needs is an expression assembly which hooks up
in parallel with the pneumatic stack and allows a controlled amount of
spill.  I have seen diagrams of such an assembly that had four tubes
from the tracker bar and was set up so that the greatest amount of
spill created the softest playing.

I hope that "somewhere out there" someone has just what we need.

Thanks,
Pat DeWitt
Fort Wayne, Indiana