synthesized --- then Joe Zawinul solo albums could come into the mix?
There are (164) mp3 snips of Zawinul tunes on amazon, maybe that could help.
not exactly what you described, but check out, Tower Of Silence, Joe Zawinul & The Zawinul Synd, Vienna Nights, and then Y'elena.
Keep in mind, I don't think these snips start at 00:00:00:0000.
The vocals have heavy 'vocoder' on it if that helps job the memory.
Makes me want to fire up my oberheim 8 voice and see if I can create the sound.
Let's see, do I remember how to turn a billion knobs?
I wonder if there's an app for that ;-)