The Advent And Industryalizer - BVR Acid Lead Request

Sounds like a sawtooth wave which pitch is being swept down. You can actually start with the init patch and try the oscillator balance in 50-50 and OSC1 only position, because I think I heard some detuning but it maybe just caused by the sweep. Then you have LFO1 that is pre routed to oscillator pitch. You can use this LFO in ENV mode with a sawtooth shape. Set the OSC routing amount pretty high and positive, as the sweep is quite steep, and the LFO rate relatively fast which translates to short in ENV mode.

Hi both
I think it sounds like there is a very short/close delay giving it a double'd up feel.