Octavox.

Octavox is a diatonic pitch shifter built on Eventide's Harmonizer technology that turns one incoming part into as many as eight voices, each tuned to the key and scale you set and placed in time on a Notation Grid. Stack vocal harmonies, widen a guitar or synth across the stereo field, or turn a melody into a rhythmic sequence. A pitch-tracking off mode suits polyphonic and rhythmic material such as drums. It is aimed at electronic musicians, singer-songwriters and guitarists. Activation needs an iLok account but no physical dongle.