Play one note.
Create beautiful chords.

The harmony instrument that turns single notes into rich, expressive chords inside your DAW. Play chords with one hand, improvise melody with the other, stay in key, and build progressions in real time.

Download Harmonimo See how it works

Adaptive voicingOne-time purchase

Formats VST3 + Standalone

Systems Mac + Windows

Control MPE + MIDI Sync

Features / 01

Okay, but how does the magic work?

Harmonimo keeps the workflow simple on the surface and deep where it matters. Play a note, stay in key, shape the harmony, and turn the idea into something worth keeping.

Play chords and melody at the same time.

Trigger full harmony with one hand while the other hand plays melody that stays locked to the key, so you can explore freely without falling out of the song.

In-key play
Performance input
Melody lane

Harmonimo chord and melody performance preview

Smart voicing, shaped by context.

Extensions, tensions, smoothing, and voicing behavior react to genre, scale degree, and harmonic context so every chord lands with intention.

Tension bias
Voice smoothing
Wait / Morph / Punch

Build progressions without breaking flow.

Use scale-degree pads, borrowed chords, and harmonic guidance to turn a single voicing into a full progression while the idea is still fresh.

Progression pads
Borrowed chords
Guide coloring

Genre-aware styles with identity.

Move between tight classic voicings and more characterful styles like neo-soul, gospel, house keys, modal jazz, and beyond without changing how you play.

12 styles
Genre aware
Voicing language

Harmonimo keys, keyboards, and genre selector

Specs / 02

Now for the nerdy stuff.

Built to drop straight into your setup, whether you want to sketch in standalone, work directly inside your DAW, or drive external synths with real-time MIDI.

MIDI
In + Out Play it live, control it directly, and keep it moving through your setup.

Synth
Ready Compatible with external and physical synths through real-time MIDI output.

Formats VST3 + Standalone

Platforms macOS + Windows

Input MIDI keyboards and computer keyboard in standalone

Control MIDI Learn, saved mappings, and controller presets

Output Real-time MIDI output for DAWs and external synths

Sync Standalone MIDI clock sync

Purchase / 03

Focus on music. We'll handle the math.

Harmonimo started as a passion project for our tiny two-person team. It is available as a one-time purchase for producers who want better harmony without slowing down their workflow.

Download Harmonimo

One-time purchase · £19.99 GBP