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Bach, Johann Sebastian: The Well-Tempered Clavier I-II
For pedagogical reasons the composer ignored the original order of pieces, and compiled the material according to grades of difficulty, dividing it into four books. The present edition presents the Bartók Wohltemperiertes Klavier in two volumes, each containing two books.
One interesting feature of the Bartók edition is that two of the fugues in both book III and book IV are written out in full score, to accustom the pupil to score-reading. For some pieces he deliberately refrained from providing performance indications, to give pianists an opportunity to exercise their creativity.
The current edition is not a reprint: errors we know of have been corrected, and the layout of the score has been re-arranged keeping in mind the need to turn pages. This edition which includes Bartók's detailed comments is complemented by facsimiles of Bach's manuscript and an afterword by László Somfai.