According to the note on the back sleeve:
“The musical score, with the exception of the song “Me And My Rhythm Box”, was realized on the Fairlight Computer Musical Instrument at the Public Access Synthesizer Studio (PASS) in New York and was engineered and mixed by Stephen Horelick at Patchworkds NYC directly from the Fairlight Computer Musical Instrument.”
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It is also my guess that the Fairlight Computer Video Instrument was used to make all of the color effects in the film:
http://www.youtube.com/watch?v=9etk78C1pLk