I added some delay to spread the stereo spectrum on this synthesizer drone of a low frequency fifith interval. During the recording you can hear the cutoff frequency changing as I turned the knob for it. On my most often used synth, the Korg MS2000 that was used for this recording, the surface around the cutoff frequency knob has been polished smooth from wear. I use it much more frequently than the modulation wheel or pitch wheel. I love knobs.
Synthesizer Fifths Drone