I have just finished alterations on an old Cunningham player piano
to add solenoids and decoder for MIDI control.  If interested, here
you will find some pictures:

http://WMBusker.photobucket.com/albums/rr152/wmbusker/Piano%20Midi/?albumview=grid 

I will create and post a simple video tomorrow, please look for it at

http://www.youtube.com/user/FlpBusker 

Happy holidays,
Wagner Mello