Secrets Of Organ Playing Podcast

This question was sent by Anne, and she writes: Dear Vidas, Could you help me out a little with registration? I am quite confused about how one should register for many compositions by Bach, in particular his Trio Sonata in E flat (BWV 525). I understand that it was not common practice in his time to list out particular stops one should pull for each piece, and that it depended rather on the organist himself and the place he was in. But I don’t know where to start. If it doesn’t trouble you too much, I’d definitely appreciate your help. Regards, Anne