Bach FAQ 66
Yes, Johann Sebastian Bach was working on a composition, on a fugue, when he became blind in 1750. He dictated his last ideas and arrangements and his son-in-law wrote them down, as Bach couldn't see the lines any more and put to paper, what he was still able to create in his mind. But Bach couldn't finish this work.
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99 Music Calendars, Composers Calendars and Bach Calendars
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