Nice posting, thanks for that. I still cant really understand the hype around Gould and its goldberg interpretations. Yes, they are good. But no, they are far from the best I know. If you ever get the time and a recording, listen to Ragna Schirmer playing Goldberg. Her interpretation blows Gould's out of the water, IMO :-)
Gould is a sort of package deal. I like his Goldbergs but to see his “authentic self” I’d look at something a little kookier of his like his Alla Turca [1]. It will not be what you expect.