Melody Sheet • Multi-part Harmony
Multi-part Harmony
Stack 2–4 voices, preview harmony strategies, and export choir-ready arrangements.
Adjust instrument, noise, and sensitivity controls while reviewing waveforms and pitch grids.
Drag in songs to detect tempo, key, waveforms, and DJ tools like Camelot wheel insights.
Turn mood prompts into MIDI-friendly melodies and keep a shareable history.
Stack 2–4 voices, preview harmony strategies, and export choir-ready arrangements.
Enable PWA recording, tune latency, and push mobile clips into the analyzer pipeline.
Drag notes, transpose phrases, and hear instant playback as you edit notation.
Adjust instrument, noise, and sensitivity controls while reviewing waveforms and pitch grids.
Drag in songs to detect tempo, key, waveforms, and DJ tools like Camelot wheel insights.
Turn mood prompts into MIDI-friendly melodies and keep a shareable history.
Enable PWA recording, tune latency, and push mobile clips into the analyzer pipeline.
Drag notes, transpose phrases, and hear instant playback as you edit notation.
AI Multi-part harmony generator for choirs, bands, and classrooms
Generate 4-part SATB harmonies using Google Magenta's Coconet AI model trained on Bach chorales. Adjust temperature for Bach, Pop, or Jazz styles, and export multi-track parts instantly.
Harmony planner
Harmony Settings
Input Method
Generate harmony to see voices here
↑ Configure settings and click Generate
How to use the multi-part harmony generator
- 1
Enter your melody as MIDI notes
Input comma-separated MIDI note numbers (36-81 range, e.g., 60,62,64,65 for C4,D4,E4,F4) as the soprano line.
- 2
Choose harmony style (temperature)
Select Bach (conservative, 0.5), Pop (balanced, 0.7), or Jazz (creative, 0.9) to control AI creativity level.
- 3
AI generates 4-part SATB harmony
Google Magenta Coconet model, trained on Bach chorales, automatically creates Soprano, Alto, Tenor, and Bass voices.
- 4
Preview each voice individually
Visual notation and playback for each voice. Click Play to hear individual parts or all together.
- 5
Export CSV or copy to clipboard
Download multi-track data as CSV or copy the harmony summary for use in DAWs and notation software.
FAQ: Multi-part harmony generation tools
What are the benefits of multi-part harmony generation tools for choir?+
They reveal how every voice moves, keep arrangements consistent, and accelerate rehearsals.
How do I create multi-part harmony online for free?+
Upload a melody, choose target key + voices, and let the generator stack intervals you can edit later.
What is the best multi-part harmony generator for 4 voices?+
This page focuses on 2-4 voices with export-ready data ideal for quartet arrangements.
What limitations should I know about?+
Extremely dense jazz voicings may require manual adjustments; always double-check leaps.
Can bands use it while practicing?+
Yes, load stems on a laptop, auto-generate harmonies, and share sheet snippets instantly.
Any free multi-voice harmony AI alternatives?+
Communities cite Music21.js notebooks and Tone.js sketches; we wrap those with a UI.
How does it support classroom teaching?+
Educators can toggle voices, solo soprano/alto lines, and walk students through interval moves.
What future features are planned?+
Custom rule editors, voice separation, and direct DAW sync are on the roadmap.
How do I optimize it in Next.js apps?+
Memoize harmony data, lazy-load audio previews, and keep UI virtualization in mind.
What does Reddit say about multi-part harmony AI tools?+
Producers praise the fast baseline output while noting that human tweaks create the magic.
How do I target SEO for multi harmony generator features?+
Mention phrases like “multi harmony generator features” across hero copy, steps, and FAQs.
Does it work on mobile?+
The responsive layout supports tablets and phones, ideal for choir directors on the go.
What high search keywords should I include?+
“AI multi-part harmony ideas” and “low competition keywords for multi voice harmony AI tools” index well.
Any low KD keyword examples?+
Try “simple multi-part harmony for beginners” or “choir harmony generator tutorial.”
Can I send results to the sheet editor?+
Yes, export MusicXML and continue editing inside the interactive sheet editor and playback page.
Need instant choir-ready harmonies?
Upload a melody, choose up to 4 voices, and export MusicXML directly into your rehearsal binder.