BWV 1043/2 - Largo ma non tanto (arrangement for organ) - Bart Jacobs

[@jordifranch7426]

Masterly music (Bach), no doubt about it, but the organ plays in a key very far away from the original. That makes a negative difference.

[@victorro8760]

Bach changed the key when he made the harpsichord version "bwv 1062 II andante e piano". I assume that it was better suited to the temperament they had at the time. I don't have the ear to tell whether their organ is in equal temperament or not but if it isn't, then I think it's safe to assume that this organ transcription did the same. If it is equal temperament, then it doesn't really matter, it might just be to make the keying easier which is relevant if you're playing 2 things with your hands and 1 thing with your feet all at the same time.