There are a lot of harmony processors out there, however the patented DigiTech harmony algorithm is the only one capable of maintaining the characteristics of the human voice. Whether you need harmonies for a live performance, your new CD, or just a demo tape, the DigiTech® VR is up to the job. The VR lets you choose between Chordal or Scalic Harmonies, select the key and scale, determine whether the harmonies are below or above your voice, assign individual mix levels for your voice and the harmonies, add warm reverbs, and much more.