Christ, my ignorance....can the organ play fast trills as piano??? Is that the score used for piano too??
If it's an organ with electrical transmission from keyboard to wind mechanism, and it concerns hight registers (which means short, fast pipes) indeed trills can be pretty smart as you can hear in places. Gets more difficult with mechanical transmission organs because of the pulls and levers in between, and also with lower registers, as big pipes need a little time to come to produce their sound.
No, I do not use piano scores for organ. Except for the Bach four duets on the site, which are for manuals only and can be played equally well on piano and organ.
Wachet auf, ruft uns die Stimme. Have you played this one? It's so ethereal.
I've tried it out but it is not on my shortlist yet. One of those that everybody knows. I'll get to it eventually.
Glad you enjoyed these. It's still a bit ragged and/or stiff in places but shows much progress since the last recordings.