Antares Auto-Tune Evo Pitch Correcting Plug-In - Native Edition The Next Generation of the Worldwide Standard in Professional Pitch Correction The Fastest, Easiest-To-Use, Highest-Quality Tool for Correcting Pitch Auto-Tune Evo's MIDI functions require that your computer be equipped with a MIDI interface and properly configured system level software Auto-Tune Evo authorization requires an iLok USB smart key and the ability to access ilok.com (on any computer)