Although Mozart purists may not appreciate the irreverant interpretations by Glenn Gould, it certianly provides new insight into these well worn pieces. In many places, his performances completely change the conception of the music. That alone makes this worth having - it isn't another faithful run through, but a rethinking of these works by Mozart. Surely, his lack of fondness for Mozart shows, but I think it contributes to the excellence of these performances. This is Mozart as composer equal with performer. These are good.