Harmony Lab
Create chord progressions with theory, sound, and flow.
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Built for real musical work

Harmony Lab helps you move from idea to action faster

Harmony Lab helps you generate, audition, shape, and export harmonic ideas, whether you start from a scale, a function, a custom progression, or a spark of inspiration.

Great fit for
producerscomposersarrangersidea generation
Core workflow

What you can do with Harmony Lab

A focused breakdown of the workflows this app is designed to support.

01
Start with By Scale when you want harmony built around a specific tonal palette.
02
Use Functional Harmony to work faster with functional harmony concepts.
03
Switch to Generate or AI when you want fresh harmonic suggestions.
04
Build freely with Custom when you already know the direction you want.
05
Hear progressions instantly with multiple instruments, voicings, and playback styles.
06
Use Create to turn theory knowledge into progressions you can reuse in production.
07
Export harmonic ideas as MIDI or audio for production, arranging, and songwriting.
Access options

Access Options

Harmony Lab gives you a free starting point, plus optional ways to keep the experience cleaner or unlock more.

No Ads
$2/ month

Keep Harmony Lab cleaner and more focused.

No cross-app recommendations
Keep the full Harmony Lab experience unlocked
Support future development
Continue Without Ads
Full Usage
$5/ month

Unlock the full Harmony Lab experience with a cleaner workspace.

No cross-app recommendations
Full usage unlocked
Support future development
Continue with Full Access
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Questions about Harmony Lab

What is Harmony Lab?

Harmony Lab helps you generate, audition, shape, and export harmonic ideas, whether you start from a scale, a function, a custom progression, or a spark of inspiration.

How much does Harmony Lab cost?
No Ads: $2 / month
Full Usage: $5 / month
How can I use Harmony Lab on my device?

Harmony Lab works in the browser, and you can install it as a web app for a more native feel. The browser version is the main way to access it right now.

What can I do with Harmony Lab?
  • Start with By Scale when you want harmony built around a specific tonal palette.
  • Use Functional Harmony to work faster with functional harmony concepts.
  • Switch to Generate or AI when you want fresh harmonic suggestions.
  • Build freely with Custom when you already know the direction you want.
  • Hear progressions instantly with multiple instruments, voicings, and playback styles.
Who is Harmony Lab best for?

Harmony Lab is especially useful for producers, composers, arrangers, idea generation.

Which devices can run Harmony Lab?

Harmony Lab works on modern browsers across phone, tablet, and desktop. For the best experience, install it as a web app from your browser when that option is available.

Ready to explore Harmony Lab?

Use it in your browser right away and keep your workflow moving on any device.