Bach: Goldberg Variations, BWV 988 (The Historic 1955 Debut Recording)
In the main, sonic differences between Sony Classical's 20-bit remastering of this landmark 1955 recording and its previous incarnation in the CBS Great Performances series (CBS MYK 38479) are subtle rather than striking. Tape hiss is reduced, while ambient studio noise is heightened, bringing Glenn Gould's trademark humming and squeaky chair more into the foreground. One can also perceive slight changes in microphone setups between certain variations.  Gould completists, however, will want this Glenn Gould Edition transfer for two fugues recorded in 1957, drastically different from the pianist's perverse remakes 13 years later for his completeWell Tempered Clavier Book II. Any respectable piano collection, however, should include Gould's debut Goldbergs, at any price.--Jed Distler