Preludium in Fis

My last lesson:
Again Buxtehude :-)
This time the preludium in Fis
With Werckmeister 3

The used registrations are.
Part 1:
RW P4 octaaf lager Ped: S16, S8, P8
later:
HW: P8, O4, O2 + BW S1 + RW Quint octaaf lager
Ped: S16, P8, O4 + HW

Part 2:
Rw H8 + Wf2 Ped P8 + RW

Part 3:
HW: P8, O2 + BW S1
Ped: S18, P8, O4 + Rw D8 + Wf2
Later: HW P8 Ped: S16 + P8

Part 4:
RW: H8 + trem Ped: S16 + P8

Final:
HW P8, O4, O2
Ped, S16, S8, P8, O4 + RW: Wf2

Later: HW..+ BW: P2 + RW Quint + Sesq. - Wf2
Ped + F16 + S4 - RW
end:
HW: + Tr8 + BW S1