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brighton, uk

minimoog + talkbox with bass guitar underneath
'follower controlling a band pass filter ' would give a similar result, but the effect in the song is so irregular and natural it must be a talkbox.

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BOSTON

this is sort of off-topic, but stevie wonder is soooo so damn amazing. i can listen to his stuff anytime, anywhere, on repeat. whenever i feel like i am doing a good job musically, i just listen to some stevie wonder and that shuts my ego up real good.

heart heart heart STEVIE FTW!!! heart heart heart

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Brunswick, GA USA

If you only mean the bass sound, it's the moog.  A minimoog can sound like that by itself, no effects, no pedals, no modifications.  If he wasn't able to tweak the filter setting as he played, he may have had his assistant plug in a ribbon controller.

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Cambridge, UK

I used to have the Arp Odyssey, which stevie had been known to use in a lot of music and i know i used to get sounds like that out of it.
It is hard to know for sure but it does sound similar with the technique he is using to play.

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̛̛̩̥̩̥̩̥̅ ̥⎬̛̛̛̛̛̥̥̩̥̩̩

Probably gonna have to pro-sound to get it perfect