A simple but straightforward tremolo audio effect to give you that nice "Crimson and Clover" feel. The controls are pretty simple and straightforward: • Rate control -- how fast to change the incoming signal • Depth -- how much to change the signal • Dry and wet mix -- amount of original (dry) and changed (wet) audio to send out • Square switch -- change amplitude abruptly instead of with smooth sine • Odd 90° switch -- affect L and R (odd) channels with orthogonal LFO signals.