Music Guru
Explore scales, chords, and progressions in a way you can actually hear.
Installable web app for every device
Also on App Store · Google Play
Built for real musical work
Harmony Lab helps you move from idea to action faster
Harmony Lab helps you build, hear, shape, and export chord progressions, whether you start from a scale, a function, a custom idea, or a lucky spark.
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.
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.
Ad-Free
$2/ month
Keep Harmony Lab cleaner and more focused.
No cross-app recommendations
Keep Harmony Lab cleaner and more focused
Support future development
Full Access
$5/ month
Unlock the full Harmony Lab experience with a cleaner workspace.
Unlimited-length chord progressions
AI chord progression generation
All chord and scale types
Advanced play styles and artistic patterns
4-instrument playback, MIDI export, and more
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Loved by Creators Worldwide
Questions about Harmony Lab
General
What is Harmony Lab?
Harmony Lab helps you build, hear, shape, and export chord progressions, whether you start from a scale, a function, a custom idea, or a lucky spark.
How much does Harmony Lab cost?
Ad-Free: $2 / month
Full Access: $5 / month
Full Access: $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. Store options are also shown on this page when they are available.
Features
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.
Technical
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.