What synth used Maurice Jarre's in Jacob's Ladder

[adala]

What synth used Maurice Jarre's in Jacob's Ladder (1990 film) (start at 1:21)?

monks singing is very similar to the preset from Emulator II.
Synclavier? Fairlight? - cheked them( Arturia VST and youtube's revier) but did not find similar.

[Virgule]

Korg Wavestation?

[adala]

checked it, but not

[Jazzyman17]

That bellish sound I hear in the background is most likely the PPG Wave. Same goes for that low pitched voice.