For those that are interested, here is the original album by Franz Lambert that it is taken from, it is played on the 2nd generation of Wersi analogue Organs, specifically the Helios model, (1977 – 1984 with many upgrades to the instrument over this time) it also came with the notes and registrations for the songs (So players who had the instrument could play it like Franz Lambert) but would frighten most people off as it featured plenty of right hand chords in addition to the left hand chords and pedalboard.

https://www.youtube.com/playlist?list=PLdz_kjHdXHbF99ACL9lVHc1Ju_KUIeTOC

Bill