Glenn Gould. If you must have Bach on piano. However, if you really want to hear it played beautifully, try Wanda Landowska (if you can find her recordings), on harpsichord. Or any one of a number of people for the organ works.
Was waiting for yhe nod to Landowska.
Always reminds me of Turek's quote to her , see below excerpt from an article that appeared shortly after her passing
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Her Bach was worthy of her bite
September 4, 2003Print this articleEmail to a friend
Rosalyn Tureck, Musician, 1914-2003
"
You play it your way; I play it Bach's way." Addressing the indomitable harpsichordist Wanda Landowska, the equally indomitable Rosalyn Tureck, who has died aged 88, made one of her most famous and characteristic statements. For J. S. Bach was the composer to whom this strong-willed, demanding, fearsomely intelligent American keyboard player dedicated her life, both as performer and scholar.
She went against a prevailing fashion by playing Bach on the modern grand pianoforte. That this has now again become an acceptable practice is mainly due to Tureck's artistry, persistence and example.