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MIDI Harmonizer
Improvisation tool
MIDI Harmonizer
Use the MIDI Harmonizer to beef up your solo
and add some unexpected harmonies and chords to spice up your performance
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Synth sound design
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Synth sound design
Read about the latest developments in synth design, programming synths and sound design
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MIDI & Audio routing
Blog
MIDI & Audio tools
Machine learning, MIDI routing and audio routing
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Johan Looijenga

Interactive applications in music

Downloads

You can download the MIDI Harmonizer application for adding extra harmonics to your solo.

Tools

I write about new developments in electronic music and the use of Machine Learning in music.

Synthesis

Tips and tricks about synth design, synth programming and MIDI routing in Apple Logic and Ableton Live.

The MIDI Harmonizer

Questions about the midi harmonizer?

Frequently Asked Questions

The MIDI Harmonizer is an application that can be used to generate additional harmonized notes in real-time on top of notes played on a keyboard or EWI instrument. It uses an input MIDI signal to generate these additional notes, and these notes are then send out via MIDI as well.

The MIDI Harmonizer does not generate any audio sound on its own. However, the output MIDI signal can be used to generate sound on any hardware or software synthesizer of your own choice.

Yes, MIDI Harmonizer can work with any Digital Audio Workstation software including e.g. Apple Logic, Apple MainStage as well as Ableton Live. It is not a VST or a AU plugin, it is a standalone app running in parallel with your DAW. It can either be sitting in between your instrument and the DAW, or it can be used as an external MIDI instrument within the DAW feeding it’s MIDI output back into your DAW again.

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I like music

About Me

I like music, especially making music. I listen to a lot of different stuff, but I like soul, jazz and fusion music most. I like to develop and experiment with tools to make music performance and improvisation on the spot more exciting. It is fun when unexpected musical things happen during a performance!

In recent years I developed the MIDI real-time Harmonizer, a tool for generating harmonized chords when playing a solo line. Inspired by the work of saxophonist Michael Brecker, I started to develop this tool to run on Mac and PC. Brecker played the Electronic Wind Instrument and used the Oberheim Xpander synth to generate random chords from an EWI solo line. Now you can accomplish the same thing with the MIDI real-time Harmonizer driving your own favourite (plugin) synths.

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