Well Folks you know I like Cool Stuff , Old and New But have you ever heard of a Orchestrion ??

Wurlitzer , Seeburg were only 2 of maybe 20 Mfg of these devices of fun

http://www.timtrager.com/

and of course a youtube video link

http://www.youtube.com/watch?v=gdXDDz1Nvxs&NR=1