Scaler Music’s key, scale and chord detection plugin “Scaler Detector” is available for free for a limited time!
This article covers the free distribution details and an overview of Scaler Detector. Please use it as a reference.
What Is Scaler Music “Scaler Detector”?
Scaler Detector is a standalone app and VST/AU/AAX plugin that detects the key of the music you play. It can detect the key, scale and chords from a whole song, a single polyphonic audio track, or MIDI data. It has the same key and scale detection as the songwriting plugin “Scaler 3,” and you can even play chords that fit the detected scale with a single finger on a MIDI keyboard.
Key Features
- Detects chords from audio and MIDI, determines the key and scale of the song, and suggests chords that fit
- Detection works with real-time input, and also by dragging and dropping or loading MIDI and audio files
- Detected chords can be exported by dragging and dropping them into your DAW, onto your desktop and more
- The sensitivity of audio detection can be adjusted with Threshold
- Bind function: play a chord with a single note on a MIDI keyboard
- Voice Grouping: creates wider voicings and smoother chord transitions
- Scale White Keys: maps the notes of the selected scale to the white keys
- Search the scale database and audition the diatonic chords of each scale (displayed by Note Match, Chord Match, Mode and Mood)
- Shows the notes of the selected scale on an on-screen keyboard
- Includes three versions: “Scaler Detector” for MIDI/instrument tracks, “Scaler Detector Audio” for audio tracks, and “Scaler Detector Control” for DAWs that support MIDI FX
- Supports a standalone mode that works without a DAW
How to Install and Activate Scaler Detector
Scaler Detector uses a Redeem Code obtained from Plugin Boutique. You register the product to your Scaler Music account, then enter a license key when you launch it to activate. Follow the steps below.
- Check out from the product page: add the product to your cart at $0 on the Plugin Boutique product page and complete checkout (you need to be logged in to your Plugin Boutique account)
- Get your Redeem Code: after checkout, find the Redeem Code for Scaler Detector in your Plugin Boutique My Library
- Create a Scaler Music account: create a new account on the Scaler Music official website (if you already have one, you can use it as is)
- Enter the Redeem Code to register the product: enter the Redeem Code from step 2 in your Scaler Music account to register Scaler Detector. After registering, download the installer from your account
- Install: double-click the macOS or Windows installer and follow the on-screen instructions
- Activate: launch Scaler Detector and enter your license key to activate
That covers the free distribution of Scaler Detector. The offer is available for a limited time, with the end date shown on the Plugin Boutique product page.

