An LFO or Low Frequency Oscillator is like oscillators we've used before but they're for modulating
signals, rather than for creating listenable tones —in fact the frequencies used are generally below 20 Hz, just
outside the range of human hearing
The LFO signal is not producing audio but is plugged into —for instance— the amplitude (or "volume") signal
of a different
oscillator, or its frequency signal
The resulting wave applied to volume would raise and lower amplitude in time with the
cycling
of the LFO
Applied to the frequency, the waved of the LFO might produce a sense of vibrato
Oscillator One: 220 Hz (220 Cycles per Second)
Oscillator Two: Starting at 220 Hz (220 Cycles per Second)