The Electro-Harmonix Intelligent Harmony Machine effects pedal creates matching harmonies as you play, providing the sound of another guitarist playing along in perfect sync. Access the sounds of multi-lead guitar bands and multi-part harmonized solos with its ability to apply harmonies ranging from simple to sophisticated, powered by the reliable tracking and genuine musical tone of EHX. Select your key and the Intelligent Harmony Machines will generate single note, diatonic harmonies that includes both two- and three-part harmonies.

The Intelligent Harmony Machine also performs perfect polyphonic pitch shifts and includes a Major/Minor switch. There’s also an option so you can apply a user-set sweep time between dry and effect. Choose instant pitch changes or control the time it takes for the Intelligent Harmony Machine to sweep up and down between the set interval and the dry signal.