Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A nice reference copy

Bernard Roberts is someone who I'd characterize as a master crafsman who can be relied on to give a good interpretation of the works without taking them over (e.g. like a Glenn Gould). The result is not just good listening but its makes for a recording that's an invaluable study aid for anyone who's trying to learn this material. Since the 48 are not just pieces of music but Bach's demonstration of styles and keyboard technique -- something that Dr. Roberts seems to understand very well -- you end up with a lot more than some CDs, a plastic case and a few sleeve notes......if you could only figure it all out, of course.