Diagram of normal sinus rhythm as seen on ECG. In atrial fibrillation the P waves, which represent depolarization of the top of the heart, are absent.
The wah-wah pedal is based on a simple concept but its effect is far more dramatic. Using a powerful filter to sweep through a broad frequency spectrum, the wah pedal boosts and exaggerates specific tones. Creating sounds that range from thick, flubbery bass to scratchy, stinging treble.
A: By rocking your foot back and forth on the pedal, you can change the effect that the CryBaby wah pedal has on the tone of your instrument instantaneously. Toe down will give you more treble, and heel down will give you more bass. The speed and amount of effect you use depends on your style of playing.