A few weeks before I started on this review, I went to a press event in New York City for the premiere of a "re-performance" of Glenn Gould's legendary 1955 recording of Bach's Goldberg Variations. No, they didn't play a new CD or even the original master tape; we heard Mr. Gould, who passed away in 1982, virtually playing a Yamaha Disklavier Pro concert grand piano. And it was no scam. Zemph Studios (a music technology company based in Raleigh, North Carolina) converted the original recording to high-resolution MIDI files and played them back over this very special Yamaha piano. The concert thrilled everyone, especially those in attendance who were lucky enough to have heard the flesh-and-blood Gould perform back in the day. The event organizers gave each of us a copy of the new Sony/ BMG Masterworks SACD of the re-performance.