Auto-Key is an automatic key and scale detection plug-in designed to simplify and accelerate your music production process. By accurately identifying the key and scale of your tracks, it ensures your pitch correction tools are perfectly aligned with your project's musical context. This plug-in is particularly helpful for matching samples and loops to your song, enhancing overall harmony and cohesion.

The plug-in works by analyzing audio in real time when inserted on any track or master bus, quickly revealing the detected key and scale. For even faster results, you can upload an audio file for analysis that completes in less time than playback. Auto-Key also detects the tuning reference frequency, which is essential when working with music that may not follow the standard 440 Hz tuning.

Auto-Key integrates seamlessly with compatible versions of Auto-Tune, allowing you to transfer key and scale settings automatically with a single click. This feature streamlines the pitch correction workflow, especially when managing multiple Auto-Tune instances across a project. Its intuitive interface includes an onscreen keyboard that visually highlights detected pitches, providing clear feedback throughout the process.