Antares Auto-Key 2

Automatic Key, Scale, and Tempo Detection Plugin

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Education Proof

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Education proof is submitted to the manufacturer and is accepted at their discretion.

The Basics

iLok is a copy protection method used by many of our brands.

It has 3 types of activations, iLok USB, iLok Machine, and iLok Cloud.

Different brands/products will offer different iLok methods. iLok USB is always an option, but the availability of iLok Cloud and iLok Machine methods is at the discretion of the software developer.

iLok Account

For all iLok protected products, you will need an iLok account. You can create one for free here:!registration

iLok License Manager

To manage your iLok licenses, there is a dedicated app called iLok License Manager. This app is used to register, activate, and move your licenses between locations.

You can download the latest installers from the iLok website:!home

iLok USB Key

iLok USB

This activation is stored on an iLok 2 or 3 USB key.

It is the best option for portability, if you frequently move between multiple machines, and offline use.

iLok Machine ID

Machine ID

This activation is stored locally on your computer.

While this is a convenient way to work offline, and does not require the additional cost of an iLok USB, there is the risk of a license being lost in the case of a drive failure.

This option also requires extra care when you upgrade to a new computer, the license(s) must be deactivated on your old machine first to ensure you do not lose them.

iLok Cloud

iLok Cloud

This activation is based online, and requires a "cloud session" using the iLok License Manager.

It requires an active internet connection for the entire time you use the plugin(s).

Auto-Key 2 is the automatic key, scale, and tempo detection plug-in which easily identifies primary musical properties to assist music creators and speed up their workflows.

Effortless Analysis

Scan your music in real-time and automatically detect key, scale, and tempo information from any audio file.

Drop It Like It's Hot

Drag and drop audio files directly into Auto-Key 2 to easily detect key, scale, and tempo information across all Auto-Tune plug-ins.

Direct to Auto-Tune

Click the "Send to Auto-Tune" button, and compatible versions of Auto-Tune are automatically updated with the correct key and scale settings.

Automatically Stay in Key

Automate key changes to compatible Auto-Tune plug-ins in your session to ensure all Auto-Tune plug-ins stay in key with your song.


  • Automatic Key, Scale, and Tempo Detection
  • Drag-and-Drop Audio Files (MP3, WAV, FLAC, AIFF)
  • Send Key and Scale Changes Directly to Auto-Tune
  • Resizable UI With Light and Dark Modes
  • Automated Key Changes

Why Auto-Key?

By automatically updating the key and scale of all the Auto-Tune effects in use, Auto-Key will drastically improve your workflow and boost your productivity.

However, it does much more than finding the correct key and scale for your music.

Auto-Key detects the key and scale of a track outside of your session in seconds, which is ideal if you're a DJ looking for tracks in the same key.

Furthermore, the pitch reference display and the Detune control will allow you to adjust the pitch reference based on the deviation from the standard A440.

What is key and scale detection?

A key and scale detection plug-in analyzes an audio file and automatically detects the vocal characteristics of a track, giving all the necessary information for an effective pitch correction.

Some of the best key and scale detection plug-ins provide real-time key detection and editing features to adjust the tonality of any vocal sample while recording or during playback.

How does the Auto-Key plugin work?

If on your project you have multiple Auto-Tune plug-ins opened on separate tracks, you'll see they're all set to the standard C chromatic key.

Add Auto-Key to the original vocal track to find the correct scale and key.

After playing the track for a few seconds, Auto-Key will display the key.

The final step is to click on 'Send to Auto-Tune' to update all the instances of Auto-Tune in use.

Auto-Key uses TONART V3 by zplane as its automatic key detection engine.

System Requirements

  • MacOS 11 Big Sur and above
  • Windows 10 and above (64-bit only)
  • Intel, AMD, or Apple Silicon CPU

Plugin Formats

AAX Native, AU, and VST3

Crossgrade Proof

This crossgrade is for owners of a competing DAW. To prove your DAW ownership, we require that you upload proof in the form of an image/PDF.

Types of proof

A copy of your purchase receipt for the original license or the most recent update/upgrade

A screenshot of your product registration

A photo of your package (either CD/DVD or printed manual), with the unique serial number included in the photo.