Glenn Gould is no longer with us, but his musical performances are still here. I am sure there are a bunch of different piano performances that he recorded for SONY, but I do not own any of them, so I am unable to tell you the best ones. However, look for the Goldberg Variations, by: Bach. You will be lucky to find a recording of some of the partite for solo piano. You will be the happiest and luckiest if you can find his rendition of Bach's first piano concerto, I think it has one of the greatest allegro movements of all piano concertos.