I found a very interesting web site filled with articles from vintage
issues of Modern Mechanix magazine.  The articles are all about music
inventions.  Some are unique patchwork devices played manually, and
many are self-playing.  It really is quite amusing and would likely be
of interest to many MMDigest readers.  At the bottom you can click to
go to the next group of articles.  There are nine pages total with
dozens of music inventions.

  http://blog.modernmechanix.com/category/music/ 

Rob Goodale
Las Vegas, Nevada