http://www.bulletproofmusician.com/evidence-that-pianists-might-have-it-tougher-than-the-rest-of-us-when-it-comes-to-performing-from-memory/
Very interesting article regarding tone control. http://www.practisingthepiano.com/controlling-tone/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+practisingthepiano%2FRDGT+%28Practising+The+Piano%29
http://mic.com/articles/91329/science-shows-how-piano-players-brains-are-actually-different-from-everybody-elses
http://cmuse.org/exceptionally-rare-videos-of-composers-in-the-last-century/