Scale-aware MIDI generator
Harmonic Seed Pro
One idea. Three musical parts. Generate melodies, chords and bass over a shared progression, then drag the MIDI into your DAW or route it to your instruments.
Explore the workflowWrite faster. Stay in key. Sound intentional.
Not a random MIDI toy. Harmonic Seed Pro is a musical idea engine built for producers, composers and sound designers who want usable parts — not noise — in seconds.
Faster Songwriting
Go from blank project to a usable melody, chord bed or arpeggio in seconds, then keep what works and reroll the rest.
Better Inspiration
Beat the blank page. Generate fresh, musical starting points and shape them with Random, Density, Humanize and Evolve.
Scale-Aware Generation
Pick a key and scale once. Everything Harmonic Seed Pro plays stays in key by construction — no wrong notes to clean up.
Professional Workflow
Lock pitch, rhythm or velocity, browse presets, A/B ideas and drag finished MIDI straight to your timeline.
Musical Results
A shared chord-progression engine keeps melody, chords and bass coherent — parts that actually belong together.
Resizable, Boutique UI
A premium dark interface that scales to your screen and keeps the focus on the music, not the menus.
One Plugin. Three Independent Parts.
Track 1, Track 2 and Track 3 each generate their own independent MIDI — over one shared, in-key chord progression — and each can be routed to a separate instrument.
Bass
Lay down a moving, in-key bassline on its own MIDI channel.
Chords
Generate the harmonic bed — locked to the same progression.
Lead
Add a melody or arpeggio that sits perfectly on top.
Perfect for layered productions, hardware synth setups and modern Ableton workflows — generate Bass, Chords and Lead at once, then send each part to its own instrument via External MIDI.
Get Harmonic Seed Pro.
One universal package for macOS and Windows: the Harmonic Seed Pro plugin, a ready-routed Ableton Live template and illustrated setup guides (PDF). Buy once, get future updates.
- Scale-aware melody, chord, arp, drone & ambient generation
- Three independent tracks over one shared progression
- External MIDI output to software & hardware instruments
- Humanize, Realtime and Evolve systems
- macOS AU/VST3 + Windows VST3 · complete PDF documentation
Secure checkout via PayPal. After payment you receive a download email with the universal macOS + Windows package, the Ableton Live template and the setup-guide PDF. Lost it? Support can verify your PayPal transaction and resend access.
Everything you need to generate, shape & route MIDI.
Five Generators
Melody, Chord, Arpeggio, Drone and Ambient — each scale-aware and instantly playable.
Humanize
Add natural timing, velocity and length variation so generated parts breathe like a performance.
Realtime Mode
Play notes in and let Harmonic Seed Pro respond with chord assist and arpeggiation, in key.
Evolve System
Let an idea develop gradually over time with controlled, musical variation instead of random chaos.
Multi-Track Generation
Three independent tracks generating different parts simultaneously over one shared progression.
External MIDI Output
Create a virtual MIDI port and route each track to a different software or hardware instrument.
MIDI Drag & Drop
Drag any track — or all tracks at once — straight into your DAW as standard MIDI clips.
Hardware Ready
Per-track MIDI channels drive multitimbral hardware and external synth rigs cleanly.
Boutique Interface
A professional dark UI with blue highlights and a live piano-roll view of every track.
See Harmonic Seed Pro in Action.
Take a closer look at the interface and see how a musical idea can grow into a complete, connected MIDI arrangement.
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Install fast. Everything included.
- Harmonic Seed Pro plugin — macOS AU
- Harmonic Seed Pro plugin — macOS VST3
- Harmonic Seed Pro plugin — Windows VST3
- Ableton Live template (ready-routed)
- Ableton Setup Guide (PDF, with routing screenshots)
- Installation Guide (macOS & Windows)
- License & details
- Free future updates
Fast answers before checkout.
What DAWs are supported?
Harmonic Seed Pro runs on macOS in AU/VST3 hosts and on Windows in VST3 hosts — Ableton Live, Cubase, Studio One, Bitwig, Reaper and more. The download includes macOS AU/VST3, Windows VST3 and an installation guide.
How does External MIDI work?
Harmonic Seed Pro can create its own virtual MIDI port ("Harmonic Seed Pro Out"). Your generated tracks are sent to that port on separate MIDI channels, so your DAW can pick them up as a regular MIDI input — no extra software required. Full steps are in the included Ableton Setup Guide (PDF, with routing screenshots).
Can I route multiple instruments?
Yes. Track 1, Track 2 and Track 3 each use their own MIDI channel, so you can send Bass, Chords and Lead to three different instruments at the same time.
Does it support hardware synths?
Yes. The per-track MIDI channels drive multitimbral hardware and external synth setups, so a single instance can sequence several pieces of gear.
Does it support Ableton Live?
Yes. A ready-routed Ableton Live template is included so you can start immediately, and the included Ableton Setup Guide (PDF, with routing screenshots) covers the exact Ableton setup for multi-instrument routing.
Do I receive future updates?
Yes. Your purchase includes free future updates to Harmonic Seed Pro v1.x.