By Ultima Music

Write it. Harmonize it. Hear it.

Guitar harmony generator.
Find scales that fit your riff.

Write guitar tab, find scales that fit your riff, and generate harmony parts for solos and songs.

Free in your browser. No installation or account required.
Best on a desktop or laptop.

Guitar Harmony Helper showing a one-bar D major riff, a harmony staff, scale matches, and a fretboard.
The browser demo with a one-bar riff and its harmony.

See it in action

Watch how to use Guitar Harmony Helper.

Follow the creator’s walkthrough, then try writing a riff and exploring a harmony of your own.

Watch on YouTube ↗

The free browser demo includes one bar and one harmony. The Windows application includes longer projects, multiple harmonies, and project saving.

Features

Build the part you can hear in your head.

Enter a guitar lick, explore its scale, and try a harmony alongside it.

01 / WRITE

A familiar tab editor

Enter fret numbers, choose note lengths, and use techniques such as hammer-ons, pull-offs, slides, and vibrato. Measure barlines appear automatically.

02 / HARMONIZE

Hear a second guitar part

Add a harmony above your lead. Explore different fretboard locations, then play the lead and harmony separately or together.

03 / EXPLORE

Find scales that fit

Compare ranked scale matches and matching-note percentages. See scale and chord notes highlighted on the fretboard.

Try now

Your first harmony is a few notes away.

The guided demo starts with an empty bar. Enter a short riff, find scales that fit, add a harmony, then try different fretboard locations.

1 bar in 4/41 harmonyNo time limit
Launch Free Demo

Need help? Follow the demo walkthrough →

The browser uses SoundFont playback. Project opening and saving are included in the desktop version.

  1. Start the demo

    Open the demo, click “Start my riff”, and use “Enable sound” if needed.

  2. Make it your own

    Click a tab note and type a fret number. Use the arrow keys to move and the timing buttons to change its length.

  3. Listen to the harmony

    Press Space to play or stop. Use Play Harmony to hear the second part on its own.

Choose your next step

Try a lick. Keep building on desktop.

Browser demo and Windows desktop features
FeatureFree browser demoWindows desktop
Project length1 bar in 4/4No demo measure limit
Harmony parts1 harmonyMultiple harmonies
Scale detection and fretboardIncludedIncluded
Open and save projectsUnavailableIncluded
Guitar playbackSoundFont previewFMOD sampled guitar engine

Customer stories

More time for your next idea.

“I've been waiting for something like this for a long time. I can write songs in half the time.”
Lee Summerlot
“Writing down a lick and listening back makes it easier to keep working on an arrangement.”
Ben tobias

Make your first part

Start with a riff. Explore what fits.

Desktop version

Give your ideas room to grow.

Keep longer projects, add more harmony parts, and return to saved work with the Windows desktop application.

Buy Guitar Harmony Helper for Windows for $25 USD, a one-time purchase.

Try the free browser demo →

Guitar Harmony Helper for Windows

  • Project opening and saving
  • Multiple harmony staffs
  • Full FMOD guitar samples bundled with the app
  • Scale analysis and fretboard tools
Buy for $25 USD

One person, up to two computers. Permanent version 1 use, including free version 1 updates. Your installer and license are available after payment; your license is also emailed to you.

Contact & help

Get the demo playing.

Follow the step-by-step support guide, check the common questions, or email us for help.

customerservice@guitarharmonyhelper.com
Why can’t I hear the demo?

Click Enable sound at the top of the demo, then click Play All Together. Check that your browser tab and computer are not muted. See the support page for more help.

Can I save what I make in the browser?

The browser demo does not open or save project files. The Windows desktop application includes project saving.

Why do several scales show the same percentage?

A short riff can fit more than one scale. The percentage shows how many entered notes belong to a scale, rather than certainty about the key.

Where is the Windows download?

The desktop application is for buyers. After payment, download your Windows installer and license from the checkout confirmation page. Your license is also delivered by email.