The Electro-Harmonix Attack Decay pedal gives you synthesizer-like control over the attack and decay of the notes you play. Said another way, Attack Decay can create tape reverse effects, slow volume swells, notes that cut off abruptly, and even bowed-instrument effects. And unlike the original effect, you can engage poly mode to affect each note you play independently. Engage the built-in fuzz circuit for harmonic excitement. Place other effects like reverbs and pitch shifters in the send/return loop to affect just those signals. Especially if you re into ambient or textural guitar techniques, there s a lot of creativity to discover in the Electro-Harmonix Attack Decay effects pedal.