Twist your tone. The Electro Harmonix KEY9 Electric Piano Machine allows you to take your tone into uncharted territory. From Wurlitzer to steel drums convert your dry signal into a wide range of impressive sounds that will enhance any production and performance. Advanced controls allow you to tweak and modulate each tone to suit your every want and need. Without any compromises. From Stevie Wonder to the Doors any tone is possible thanks to the Electro Harmonix KEY9 Electric Piano Machine.