Harmonic
Seed.
Free Scale-Aware MIDI Generator
Generate musical MIDI ideas, melodies, chords, arpeggios and ambient patterns that stay in key.
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.
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.
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 FreeLove the Seed? Grow Into Pro.
Harmonic Seed gets your ideas flowing — for free. When you're ready to turn those sketches into finished tracks, Harmonic Seed Pro generates three independent parts at once and routes them to your own instruments. Same musical DNA, a whole lot more music.
Includes:
- Sketch musical ideas
- Scale-aware MIDI generation
- Seed-based variations
- Drag MIDI to your DAW
- Host transport sync
Only in Pro:
- 3 MIDI Tracks
- External MIDI Routing
- Humanize Engine
- Realtime Generation
- Evolve Engine
- Per-Track MIDI Export
- Advanced Workflow Controls
Includes:
- Sketch musical ideas
- Scale-aware MIDI generation
- Seed-based variations
- Drag MIDI to your DAW
- Host transport sync
Plus the full Pro engine:
- 3 MIDI Tracks
- External MIDI Routing
- Humanize Engine
- Realtime Generation
- Evolve Engine
- Per-Track MIDI Export
- Advanced Workflow Controls
Unlock The Full Harmonic Seed Experience
Generate complete musical ideas with three independent MIDI tracks, advanced evolution tools and professional workflow features.
Only €49One-time purchase • Free future updates included
What Producers Are Saying
“Fast, inspiring and surprisingly musical. I got usable ideas within minutes.”
“Perfect when I hit creative blocks. It generates ideas that I would never have written myself.”
“Simple workflow, great results and a huge time saver during production.”
Ready To Go Beyond The Free Version?
Keep using Harmonic Seed Free forever — upgrade only when you want more creative power.