EarthQuaker Devices Rainbow Machine Polyphonic Pitch Modulation Guitar Effects Pedal Not for purists and/or tone hounds, there are no "natural sounds" that will come from this box Imagined to be wild and out of control and slightly imperfect while still tracking up and down the guitar neck without glitching out In conjunction with the Tracking control, the Magic creates wild pitch take offs and descents, chaos chorusing, shrieks, pixie trails and wealth of other general mayhem inducing noises. The Rainbow Machine can be used on bass, keys, vocals or anything else you can dream up. All digital wet signal with an all analog dry signal, true bypass switching and handmade one at a time by warm blooded human beans in the swamps of Akron, Ohio.