There is a new article about Stanford's player piano collection,
with an interesting video, in the October 13 Stanford News, on-line at

http://news.stanford.edu/news/2014/october/player-piano-collection-101314.html 
  The Denis Condon Collection of Reproducing Pianos and Rolls

David Sharpe

 [ See also http://library.stanford.edu/projects/player-piano-project 
 [ -- Robbie