A note about the BWV listing of recordings:
The list of bwv numbers of the recordings contains only numbers. This means, for example, that
bwv 1006a is listed under 1006. Although this is not an entirely accurate method, it is
necessary because the database containing all the information requires it to be numbers for sorting.
However, with a little scrutiny you should be able to find the listing you
are looking for. I apologise for the inconvenience.