I remember this album and there are some decent tracks on it.
You are both wrong regarding the Clavinet, though. . It was a 'Clabinet'...It says so on the below attachment, along with an an amazing list of top named musicians on this track. **
The Clabinet was an upmarket Clavinet that was housed in a stunning teak case.
I do remember reading somewhere that it was defiantly a Clavinet, and it certainly sounds like it is (under the FX/processing).