Harmony Engine Plus

Francesco Valla

About this app

Harmony Engine is an advanced MIDI and MPE expression controller designed for producers, musicians, beatmakers, live performers, and electronic music creators who want fast, visual, and expressive control over chords, arpeggios, melodies, harmony, and performance data.

Built for modern music setups, Harmony Engine helps you generate musical ideas and send them as MIDI to compatible DAWs, synths, plugins, grooveboxes, MIDI devices, and Android music apps. It is not just a sketchpad: it is a performance controller made to create, shape, and play musical material in real time.

ADVANCED MIDI AND MPE CONTROL

Create chords, scales, melodies, and arpeggios while controlling key musical parameters such as velocity, gate, timing, tempo sync, rhythmic divisions, MIDI channels, note behavior, and expressive performance data.

With compatible instruments and software, MPE support gives you deeper control over expression, allowing each note to feel more alive and responsive.

VISUAL HARMONY, REAL MIDI OUTPUT

Start from a note, choose a scale, explore degrees, build chords, generate movement, and turn simple ideas into MIDI material ready for your setup.

Harmony Engine gives you a clear visual workflow so you can understand what you are playing, hear the result immediately, and send the performance where you need it.

FOR STUDIO AND LIVE PERFORMANCE

Use Harmony Engine for composing, arranging, improvising, sound design, and live control.

Create sections, trigger scenes, switch harmonic ideas, launch patterns, and control evolving musical movements without interrupting your creative flow. Whether you are building a track in the studio or performing live, the app helps you keep your ideas organized, playable, and expressive.

CHORDS, ARPEGGIOS, MELODIES AND MOVEMENT

Build chords, transform them into arpeggios, create melodic patterns, and add rhythmic movement to your music.

Harmony Engine is useful for electronic music, techno, house, ambient, cinematic music, pop, experimental sound design, and any style where MIDI control and expression matter.

PIANO-ROLL EDITOR

Refine your ideas with a visual piano-roll editor.

Move notes, adjust timing, edit phrases, and shape patterns with more control while keeping the workflow fast and direct.

LAUNCHPAD-STYLE PERFORMANCE CONTROL

Use performance tools inspired by launchpad workflows to trigger musical ideas quickly.

Scenes and sections help you move between ideas, control musical structure, and perform patterns in a practical hands-on way.

FOR BEGINNERS AND ADVANCED USERS

If you are new to harmony and MIDI, Harmony Engine gives you a more visual way to explore scales, chords, and musical movement.

If you are an advanced user, it becomes a fast creative controller for generating ideas, testing progressions, preparing performances, and controlling compatible instruments with precision.

MAIN FEATURES

• Advanced MIDI controller workflow
• MPE expression support for compatible setups
• Create chords, scales, melodies, and arpeggios
• Control velocity, gate, timing, divisions, sync, and movement
• Send MIDI to compatible DAWs, apps, synths, and devices
• Visual harmony and performance interface
• Scene and section triggering for live use
• Piano-roll editor for note and phrase editing
• Launchpad-style performance control
• Designed for studio, live performance, improvisation, and sound design

Harmony Engine is built for anyone who wants a more immediate, visual, and expressive way to control music.

From a single note to a complete MIDI performance, Harmony Engine helps you create harmony, generate movement, and control your setup with advanced MIDI and MPE expression.

What’s new

UI improvements.