If you already know the key and scale of your music, you can still use Auto-Key to automatically set the Key and Scale of Auto-Tune Access.
Step 1: Open Auto-Tune
Open one or more instances of Auto-Tune in your project. Be sure that Enable Auto-Key Detection” is turned on in the Preferences for each instance.
Step 2: Open Auto-Key
Open an instance of Auto-Key on any track in your project.
Step 3: Choose Scale
Choose the appropriate scale from the Auto-Key Scale Menu.
Step 4: Send to Auto-Tune Access
Click Send to Auto-Tune. The Key and Scale will be set to the key and scale that Auto-Key has detected.