Symmetry
This is a fairly unique control, normally only seen in studios that makes your tremolo tone sound far more interesting and musical. At noon, the waves are equal on both side, meaning the amount of time to reach full volume, as it is to reach zero volume, turning the knob to the left make the wave reach full volume faster and zero volume slower, turning it to the right will have the opposite effect.
In Square mode, the effect is on/off with no ramping up and down, therefore, it determines how long the effect is on or off for, providing many interesting tones.
Rate
The rate sets the overall tempo you want the tremolo at
Multiplier
The multiplier increases the rate set by the Rate or Tep Tempo Control, and increases it by, 2, 3, 4, or 8 times.
Tap Tempo
The rate sets the overall tempo you want the tremolo at, while you’re playing.
Mix
Mix controls how much of the effect is dialled into your dry signal, from none and up.