[dep_b]

The original seems to have been made by creating a feedback loop between one of the outputs and the filter input of an analog synthesizer. The examples I've seen were done on a Yamaha CS-15 but a lot of monophonic old analogs allow you to do that, like a MiniMoog. However the filters on a CS-15 are quite unique, don't think you can even do this exact patch on an MS-20.

https://youtu.be/W4PEAKNtbVw?t=184

A good explanation how it works

https://www.youtube.com/watch?v=kdN43xfwV2U

Slightly better played

[whatok]

Feedback loop normally called overdrive. Broke my Voyager improperly using the headphone output for that, haha. I've only ever heard of the MS20 being the source for the lead in the track though. Random Youtube demos seem to get it close enough.

[dep_b]

Wow, really? That shouldn't happen, lots of people do that! I do it with every synth that allows me to loop back into the filter.

I don't think it's the MS-20 as it does come close but the MS-20 is slightly more nasal. Lots of moments I play with it and I think "this sounds ALMOST like The Funk" because with a big resonance on two filters it distorts pretty bad/good :). But perhaps if I try it with the same feedback technique it might get fuller.

[gdubs]

Amazing – nice find. Never played a CS-15 but it looks like a real powerhouse.

[l33tbro]

The original was recorded on a Roland SH-101.