My wife just bought an old player piano, circa 1920.  It still works, but I'm 
sure it will soon *not* work. (and let me tell you that thing is HEAVY ] 

Can anyone out there direct me to a good source of info on:

a: how these player pianos work¶
b: how one goes about fixing them¶
c: where to buy replacement parts ¶
d: refinishing tips¶
e: hints on staying married in the 90's with a player piano playing wife!

Thanks in advance.

Gerry Daelemans