Drone/Foghorn by Elliot Alderson

100% wet reverb required for intended effect.
High Pass made with Resonance at 100% turns VCF into an oscillator.
Cutoff knob determines pitch when gate is closed, while VCF Mod Amount knob determines pitch when gate is open.
Mix is set to only push the VCF through, can be adjusted to allow VCO through as well, creating some interesting dynamics.
Play with Attack & Decay for different glide (portamento) times between the notes when the gate is open and closed respectively.
VC Mix knob allows for Mother 32's default volume to be pushed beyond it's normal max output, creating distortion when it is set to higher values.
Add VCO Mod to flavor.
Play with decay/delay times/brightness on reverb.