Now on the modulation matrix, we want to set LFO1 to control Pitch by -12 semitones (an octave). Activate Sync on the LFO and then set the Rate to 1/16. Similarly, we’ll use the matrix to set LFO2 to control the filter’s Cutoff by the maximum possible.

Again, we’ll need to set the Rate to Sync at 1/16, but this time set LFO2’s waveform to asawtooth to attain that sharp, chopping motion. The filter shape should be LP6 and the cutoff knob should be reduced until the sound is tight – about 500Hz works on Retrologue. The final stage is really important. Set the pitchbend up range to +12 semitones. Later we’ll be relying on the pitchbend controller to turn the single-note pumping into something that more resembles 818’s riff.