found in the CBC archives, on film. His 1981 and 1955 versions are legendary. This one is from 1964: http://www.youtube.com/watch?v=6n0O1shJURU&mode=related&search=
Yeah, I believe you can find this version in some of Glenn Gould's video collections as well. Besides the 1981, 1955 and this version, I like the one he performs in Moscow while he was giving a lecture. It was one of the few live performances Gould ever recorded (perhaps without his release consent as the cd is, I believe, only available in Russia). At any rate, thanks for the video - he is utterly amazing. Best,
Dude! This is awesome, Glenn Gould is really a genius. Are these really previously unreleased versions?