Item #1466723544 listed on eBay today is a "hand built electronic
player piano" built by the late Paul Christian.  It plays standard
88-note rolls utilizing an electronic keyboard.  See
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1466723544

If the keyboard had a disk drive, I wonder if it could be used for
scanning rolls?

Jim Ramsey
Saratoga Springs, NY