Replaying great piano performances: John Q. Walker on

Imagine hearing great, departed pianists play again today, just as they would in person. At the 2007 EG conference, John Q. Walker shows how recordings from the likes of Glenn Gould and Art Tatum can be analyzed for precise keystrokes and pedal motions, then played back on computer-controlled grand pianos. (Recorded December 2007 in Los Angeles, California. Duration: 13:41)

Watch John Q. Walker’s talk and performance on, where you can download this TEDTalk, rate it, comment on it and find other talks and performances from our archive of 275+ TEDTalks — including many more talks on music.

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