Neumeister's transcription of Bach's prelude to "Warum betrübst du dich mein Herz" gives again many reasons to doubt the correctness of his transcriptions. Some of the notes seem wrong and though the pieces starts of as a four part piece, from bar 9 onwards one of the voices disappears. Did Neumeister omit one of the voices to make the piece more easily playable, or did Bach write it this way? Most of the time Bach writes his parts very stricly, and a four part piece stays a four part piece. We'll probably never now. I did take the liberty to correct the notes that are wrong in my opinion, I did not however try to restore a missing voice. As usual, all editorial decisions are indicated in the score.