A friend of mine listens to the BBC Radio program (or should I say
programme) "The Organist Entertains," which usually covers theater
organs and the like, but he pointed out that the January 15, 2008,
program exclusively featured mechanical music.  Instruments heard
include Marenghi fairground organ, Bursens cafe organ, Aeolian player
pipe organ, Mortier orchestrion.

You can hear the music this week and next at
  http://www.bbc.co.uk/radio2/shows/organist/playlist.shtml
although next week, probably after January 22, you will need to click
on the "last week" link to find the show.  After that I don't know if
there will be a way to retrieve the audio.

Bob Fitterman