by Franz64 » Mon Feb 05, 2018 8:43 am
I also play this piece with two hands.
I once read somewhere (cannot remember where exactly) that Bach himself meant to advise which notes are to be played with the right or left hand, using the direction of note stems (I hope this is the right word): upward stem, right hand; downward, left hand. If you check with many editions of this piece, the notes are grouped consistently with this principle. Following this rule makes the music more fluid, I think, so the I came to the conclusion that this "hidden" indication is indeed reliable, good and authoritative. I also apply the same rule to any fast single-voice passage, when notated similarly, and it works.