Used Electro-Harmonix Intelligent Harmony Machine Harmony and Pitch Shifter Pedal
Pedal Genie | Boss Super Shifter | All Your Pedal Wishes, Granted
Are Weird Pedals Worth It? - Premier Guitar
Pedal Genie | Boss PS-6 Harmonist | All Your Pedal Wishes, Granted
Electro-Harmonix Pitchfork Pitch Shifter Effects Pedal | The Music Zoo
Guitar Pedal X - GPX Blog - Electro-Harmonix's Intelligent Harmony Machine delivers a Neater and Smarter Harmonizer with Classic Pitchfork style Pitch- Shifting onboard too