Here is my version of BWV 645.
http://www.youtube.com/watch?v=0IKshnv2Vnc It is on my Allen, which I hope to shortly start as using as a contoller for Hauptwerk.
I like to try and put in some of the forte / piano incications that are in the original cantata movement by lighteneing the registration where it is marked piano in the cantata.
If you need music in normal clefs, feel free to ask me, and I may have it. I have played much of the music I play into Finale so I can make my own editions, including the one in question here. I put in all the "funny" clefs, just because I can read them and learned them with the "funny" clefs years ago, but I could easily pull them all out and leave it in "normal" clefs and send you a PDF or the finale file. I have all six of the Schubler into Finale, so if you want the others, let me know.
John