Magdalena Cello Suites?

A Professor from the Charles Darwin University School of Music has used forensic science to examine the scores of the six Bach Cello Suites. His findings suggest that far from working as a copyist, the works in Anna magdalena’s handwriting (Bach’s wife) have mistakes in them more akin to composition than copying.

Why is this interesting to me (afterall, they’re still cool, and I don’t hold much stature in who a piece is written by)? The Professor is originally from Wales!