A player reed organ was adapted in 1889 for another use.  See the
illustration and article, "Solar Eclipse Telescope Controlled by
Music Roll", at the MMD Pictures site,

  http://mmd.foxtail.com/Pictures/
  http://mmd.foxtail.com/Pictures/solartelescope.html

The author concludes, "The set-up worked perfectly but, unfortunately,
on the day of the eclipse, the sun was obscured by clouds."

Robbie Rhodes