• MTG MIDI Harmonizer - live 4-voice vocal harmony controller built on Adafruit MacroPad RP2040
  • MTG MIDI Harmonizer in use on stage - live vocal harmony controller
  • MTG MIDI Harmonizer MacroPad keys and display - MIDI harmony controller
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MTG Music

MTG MIDI Harmonizer System

MTG MIDI Harmonizer System

£199.00 GBP
£249.00 GBP £199.00 GBP
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  • New Works on its own, no DAW needed (Mac). Open the app, pick your input, play.
  • Free Try the plugin free for 7 days. No card needed. Download it

The exact setup Ed Hogben uses at every gig and in every video. Fully assembled, pre-loaded, and ready to plug in and play.

The MTG MIDI Harmonizer is a dedicated MIDI harmony controller, built on the Adafruit MacroPad RP2040. Each key holds a different harmony. Press one while you play and the harmony follows you in real time.

The MTG MIDI Harmonizer plugin is included free with every Harmonizer. It's the same plugin that's sold on its own, and it's what makes the harmonies in your DAW. Your licence and download link arrive by email after you order.

What you get

  • Fully assembled Adafruit MacroPad RP2040, pre-loaded with MTG firmware
  • MTG MIDI Harmonizer plugin, included: AU and VST3 for Mac, VST3 for Windows 10/11 (Windows in beta)
  • Lifetime access to the MTG Software Manager (Mac) for editing presets and updating firmware
  • The complete DIY Guide ebook (PDF)
  • Setup guides for Ableton Live, Logic Pro and Line 6 HX Stomp

What you need: one of these two setups

With a computer:

  • A Mac (Intel or Apple Silicon) or a Windows 10/11 PC
  • A DAW that runs AU or VST3 plugins. Not Pro Tools, which only loads AAX.
  • A mic for your instrument or voice

Or without a computer:

  • A Line 6 HX Stomp, which does the pitch-shifting instead of the plugin

The MTG Software Manager is Mac-only for now. On Windows the Harmonizer plays straight out of the box with its built-in presets; changing presets or updating firmware needs a Mac.

View full details

Try it free for 7 days

Download, open it, click Try free. No card needed.

Download for MacWindows (beta)

Works in Logic, Ableton and more, or on its own with the new app (Mac).

Hear it

The Harmonizer sends the chords, the plugin sings them. Press Hear it and watch the four voices follow a real trumpet.

The Harmonizer

Your chords, under your fingers.

The Harmonizer is a small 12-key controller that sits on your trumpet. Each key holds a chord. Press one, and the plugin re-tunes its four voices to follow whatever you play.

  1. 1Plug the Harmonizer into your computer over USB.
  2. 2Press a key. It sends the chord to the plugin in your DAW.
  3. 3Play. Four voices harmonise with you in real time.
  4. 4Change what each key plays in MTG Manager.
MIDI Trumpet Guy
MIDI HARMONIZER
4-voice pitch harmonizer · CC 11–14 · MIDI Learn
Setup guides
MIDI in
Waiting for MIDI
Audio engine
No audio coming in
Harmony
Bypassed
Press Hear it to play the demo
In
Dry / wet
100%
Out
MTG MIDI Harmonizer v1.3.0Licence
0:00 / 0:21

Real trumpet, recorded through the MIDI Harmonizer plugin. The window matches plugin 1.3.0.