Korg PE-1000

The Korg PE-1000 Polyphonic Ensemble was one of Korg’s first polyphonic synths, and was used by Jean Michel Jarre, Vangelis and others. It featured full polyphony, with an oscillator per key.
http://www.synthtopia.com/

Introduced in 1976, it was Korg's first polyphonic synth, and
"polyphonic" here means one voice per key of its five-octave keyboard,
so if you want to play clusters with your underarm, this is definitely
the analogue synth to get. The synthesis section includes LP and HP
and a sub-voice, to give a few details.
The PE1000 is a unique analogue synthesizer voice with a specific
sound not found with other devices.

http://www.loopers-delight.com/

Korg PE-1000

The Korg PE-1000 Polyphonic Ensemble was one of Korg’s first polyphonic synths, and was used by Jean Michel Jarre, Vangelis and others. It featured full polyphony, with an oscillator per key.

http://www.synthtopia.com/

Introduced in 1976, it was Korg's first polyphonic synth, and
"polyphonic" here means one voice per key of its five-octave keyboard,
so if you want to play clusters with your underarm, this is definitely
the analogue synth to get. The synthesis section includes LP and HP
and a sub-voice, to give a few details.
The PE1000 is a unique analogue synthesizer voice with a specific
sound not found with other devices.
http://www.loopers-delight.com/