Talk about mechanical music!  This is as mechanical as music gets:

  https://youtu.be/IvUU8joBb1Q
 

To see how Martin Molin's machine actually works, look at the
other eight or so video clips linked there.

Matthew Caulfield
Irondequoit, NY

 [ An index of Wintergatan Music Machine videos is at
 [ https://www.youtube.com/channel/UCcXhhVwCT6_WqjkEniejRJQ 
 [ -- Robbie