Free edition
Harmonic Seed Free
A focused starting point for musical MIDI ideas.
- Generate
- Five scale-aware modes
- Stay in key
- Root note & scale control
- Take it to your DAW
- MIDI drag & drop and file export
Free scale-aware MIDI generator
Harmonic Seed
A musical starting point, always in key. Create melodies, chords, arpeggios and evolving MIDI patterns, then make them your own.
Creative MIDI Ideas
Generate In Key.
Scale-Aware MIDI
Patterns are generated inside the selected key, so ideas stay musical while you explore.
Root Note + Scale
Choose the root and scale, then re-voice ideas instantly without leaving the harmonic center.
Five Modes
Melody, Arpeggio, Chord, Drone and Ambient modes cover hooks, progressions and texture beds.
Up To 32 Bars
Create short phrases or longer evolving patterns with musical pattern lengths up to 32 bars.
Host Transport Sync
Playback follows your DAW transport so ideas start, stop and loop with the session.
MIDI Export
Drag MIDI directly into your DAW or click to export a MIDI file for arranging and editing.
Important Setup
A MIDI Plugin, Not An Audio Effect.
Harmonic Seed creates MIDI notes. It does not generate final audio by itself. To hear sound, place an instrument after it or route its MIDI output into an instrument track.
- Works as a MIDI plugin before an instrument.
- Designed for producers, composers, ambient artists and sound designers.
- Useful for melodies, chords, arpeggios, drones and ambient pattern starters.
- Use Generate to create an idea, then drag MIDI into the DAW timeline.
- Edit the exported MIDI like any other clip in Ableton, Logic or another DAW.
Free Download
Start With A Musical Seed.
Get Harmonic Seed free, plus the installation guide and quick start PDF. The download is delivered by email so you also receive future compatibility notes and X-Audio updates.
Download FreeAvailable for macOS (AU/VST3) & Windows (VST3).
Free & Pro
Start free. Go further with Pro.
A musical starting point. More room to develop it.
More creative control
Harmonic Seed Pro
Develop connected parts with a deeper musical workflow.
- Generate
- Five scale-aware generators
- Stay in key
- Shared in-key chord progressions
- Shape the performance
- Humanize, Realtime & per-track MIDI export
3 MIDI Tracks
Melody, chords & bass.
Evolve Engine
Develop musical variations.
External MIDI Routing
Control external instruments.