Music Track - Bach Invention

This is only 1: 33 long.  It's Bach's Invention Number 1 played by the Canadian pianist Glenn Gould.  Gould died rather prematurely and he was a somewhat eccentric man - a true genius however.  When quite young, his father made him a special chair that was very low and he always used this when he played, lugging it from venue to venue.  You can see him carrying it at 1:14. http://www.youtube.com/watch?v=xzU7xQmmXGE