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Please donate to our Kickstarter Campaign and vote for the Harmonagon to receive a 5x5 Night grant.

Don’t know where to begin? Try a Random Chord, Random Scale, or Tone Row.

Quick Start Guide

Audio: Before using the Harmonagon, please adjust the volume on your device.

Full Screen: A large display monitor and browser in full screen mode are recommended for optimum user experience. Choose Enter Full Screen from the View menu or use the keyboard shortcuts for Windows (F11) or Mac OS (Command + Control + F).

Making music is as easy as 1-2-3…

  1. Click or tap the Make Chord or Make Scale button on the center console.
  2. Click or tap to select one or more notes, from 0 through 11, on the circle.
  3. Click or tap the Enter button to see and hear the interval, chord, or scale you’ve created.

Tip: When making chords, limit the number of notes you select from 2 to 4, or for chords with tensions, 5 or more. When making scales, select from 5 to 7 notes, or more for longer scales. And always try to enclose the center of the Harmonagon within the shapes you create. When shapes do not encompass or at least intersect with the Harmonagon center point, the chord or scale produced will in most cases return “undefined.”

Show/Hide: Click or tap the center of the Harmonagon to display or hide the center button console.

Clear: Click or tap the Clear button to reset the Harmonagon to the default state.

Play: Click or tap the Play button to play any interval, chord, or scale that is displayed.

Loop: Click or tap the Loop button to play along or practice with intervals, arpeggios, chords, and scales. Click or tap the middle of the screen or press the spacebar to stop the loop.

Change Tempo: Select Tempo from the Change menu and choose from 30 to 240 beats per minute (bpm). The default is 120 bpm.

Add Chord: With one interval or chord created, click or tap the Add Chord button to create a second interval or chord.

Swap Chords: With two intervals or chords created, click or tap the Swap Chords button to switch between chords.

Loop Chords: With two intervals or chords created, click or tap the Loop Chords button to loop a sequence of the two chords. Click or tap the middle of the screen to cancel and stop playing the loop.

Merge: With two intervals or chords created, click or tap the Merge button to combine the chords into a matching scale. Click or tap Undo Merge to restore the two chords.

Learn: Choose any Chord, Scale, or Sequence from the Learn menu to instantly see and hear the selection presented and played on the Harmonagon.

Watch: Introduction to the Harmonagon 4-minute video.

IMPORTANT: The Harmonagon is updated frequently with new and improved features, so select Reload on the menu each time you visit to assure you are using the most current version.

System Requirements: The Harmonagon runs client-side on desktop or laptop computers, tablets or smart phones with a modern web browser, such as Chrome, Safari, Firefox, or Explorer, and an Internet/Wi-Fi connection or cell signal.

By using the Harmonagon app, you acknowledge having read and accepted the End-User License Agreement.

Frequently Asked Questions

How do I use the Harmonagon?

It’s as easy as 1-2-3.

  1. Click or tap the Make Chord or Make Scale button on the center console.
  2. Click or tap to select one or more notes, from 0 through 11, on the circle.
  3. Click or tap the Enter button to see and hear the interval, chord, or scale you’ve created.

Please read the Quick Start Guide for an overview of app features.

Are there any tutorial videos for the Harmonagon?

Yes. The Harmonagon includes a program of videos and quizzes for self-paced learning. Our series of free music theory lessons includes an introductory video, an overview of the app's features, a Notes and Steps video and then a quiz, with more quizzes and videos coming soon.

Subscribe to our YouTube channel and follow us on Facebook and Twitter for notification of new videos, quizzes, and program features.

What new features are planned for the Harmonagon?

There are many features in development, including:

  • Cross-Referencing of Chords and Scales,
  • Change Key or Tonic,
  • Invert or Change Register,
  • Transpose Chords and Scales,
  • Transform Chords and Scales,
  • Change Scale Mode,
  • Change Chord Root or Use Alternate Bass,
  • Change Instrument Sound,
  • Make and Save Sequences and Chord Progressions,
  • Metronome and Tuner,
  • Rhythm Mode,
  • Education Levels for Preschool and Elementary Students,
  • and more.

The Harmonagon is updated often with new and improved functions so select Reload from the menu to refresh your browser each time you visit to assure that you are using the most recent release. Follow us on Facebook or Twitter and check the Harmonagon Project's YouTube Channel.

How can I help support The Harmonagon Project?

Thank you! Please consider donating to our Kickstarter campaign, now through June 2, 2017.

Please also vote for the Harmonagon to receive a 5x5 Night grant.

And please promote The Harmonagon Project, our free app and programmed learning, on social media.

 Facebook
 YouTube
 Twitter

Where can I report an error or mistake, or suggest an idea?

Please message us on Facebook or Twitter or send an email with any corrections or ideas with the respect to the Harmonagon. We appreciate your feedback and suggestions.

Why Harmonagon?

The Harmonagon™ tradename is an amalgam of the words harmony and polygon.

The Harmonagon is not working properly, what should I do?

If you have a poor cell signal or slow Wi-Fi/Internet connection, it may take a few seconds for the Harmonagon app and sound files to completely load.

The Harmonagon is updated frequently with new features and improvements, so so select Reload from the menu to refresh your browser each time you visit to ensure that you are using the most current and up-to-date version of the app.

To reload and bypass your browser’s cache: Chrome, Firefox, and Explorer users hold the Shift key when clicking Reload to force reload the page; or use the keyboard shortcut: Command + Shift + R; Safari users hold the Command key and click the Reload button. Chrome users still experiencing problems should select Clear Browsing Data… from the Chrome menu and clear Cached images and files and Hosted app data.

Hint: Click the app icon left of the Create menu or Reload to refresh the page.

About The Harmonagon

The Harmonagon™ is a new web app that uses simple geometric shapes to teach music to anyone, anywhere, for free.

The app is primarily designed as a learning and practice tool for music students and musicians, but anyone can use it, including beginners and those without an instrument.

Please donate to our Kickstarter Campaign.

Vote for the Harmonagon to receive a 5x5 Night grant.

The Harmonagon is a work in progress and user feedback is greatly appreciated:

 Facebook
 YouTube
 Twitter
 Email

or via mail:
Radical Data and Media LLC
The Harmonagon Project
6090 Ridgeview Drive
Muskegon, MI 49441

Acknowledgements

Vexflow | MIDI.js | W3Schools | Khan Academy

End-User License Agreement

The Harmonagon™ © 2016, 2017 Radical Data and Media LLC. Patent Pending. All Rights Reserved.

The Harmonagon is a software application (“app”) that runs client-side on any compatible desktop or laptop computer, tablet or smart phone with a modern web browser, such as Google Chrome, Mac Safari, Firefox, and Internet Explorer, and an Internet/Wi-Fi connection or cell signal.

The Harmonagon app and website are located exclusively at http://harmonagon.com and http://harmonagon.org.

The Harmonagon app and website are created, designed, developed, programmed, published, and owned exclusively by the principals and partners of Radical Data and Media LLC (“Radical LLC”), 6090 Ridgeview Drive, Muskegon, MI 49441.

License. This limited license grants you a revocable, non-exclusive, non-transferrable right to access the Harmonagon website and use the Harmonagon app on any compatible electronic device (i.e., desktop or laptop computer, tablet or smart phone) for personal, non-commercial purposes. Your right to use the Harmonagon app is subject to your full and complete acceptance of this End User License Agreement (EULA). If you do not agree to be fully and legally bound by this EULA, please refrain from using the Harmonagon app or accessing the Harmonagon website.

Terms and Restrictions on Use. You shall only use the Harmonagon app and website in strict accordance with the terms of this EULA. You shall not use the Harmonagon app or any of Radical LLC’s copyrighted programming code and/or proprietary data offsite or in any way that is independent of the Harmonagon app, website and servers under the control of Radical LLC.

You may not copy, remove, decompile, reverse engineer, disassemble, redesign, modify, hack, adapt, improve, transform, or translate any of the copyrighted programming code and/or proprietary data associated with the Harmonagon app or website. You may not make, or cause to be made, any representative or derivative work of any kind with respect to the Harmonagon app, website, or any copyrighted programming code and/or proprietary data.

You may not use the Harmonagon app or website for any commercial or professional purpose without the express written permission of Radical LLC. You may not charge or collect any fee, tuition, any other form of valuable compensation from any person or third-party for use of the Harmonagon app or website. You may not use the Harmonagon app or website in conjunction with any business, company, organization, institution, school, government, or other legal entity.

Music teachers, instructors, tutors, educators, institutions, organizations, and home schools seeking to use the Harmonagon app and website for commercial or professional purposes (such as for private music lessons, public or private elementary, secondary or high school, home school, private music school, conservatory, college, or university courses, labs, lessons, studies, or other educational activities) must contact Radical LLC to obtain a Professional End User License Agreement (PEULA).

Other than sharing the link (URL) on social media or bookmarking the Harmonagon website, you may not otherwise copy, redirect, reconfigure, relocate, repurpose, or reproduce the Harmonagon app or website or any part of the copyrighted programming code and/or proprietary data. You may not represent, broadcast, or transmit depictions or images of the Harmonagon app or website, in whole or in part, within any device, machine, mechanism, instrument, product, toy, game, app, software, database, document, file, website, film, video, animation, still image, slide show, or any other presentation or media, public or private, without the express written permission of Radical LLC.

Infringement and Termination of End User License Agreement. Radical LLC may, at its sole discretion, terminate this EULA and all your rights to use the Harmonagon app and website at any time and for any reason. Upon written notification from Radical LLC, you shall immediately cease and desist all use of the Harmonagon app, refrain from visiting the Harmonagon website, and delete, clear, and permanently destroy all programming code and proprietary data associated with the Harmonagon app and website, including clearing any code or data that may remain in your browser history or cache or that may be stored elsewhere on your device, hard drive, memory stick, cloud, or any other device, location, or method used to back up, archive, store, or otherwise save and preserving digital data.

Limitation of Warranty. You acknowledge and agree that the Harmonagon app and website are provided “as is” and “as available” without warranty of any kind. You acknowledge and agree that there may be circumstances or times when the Harmonagon app and website are nonfunctioning or unavailable (for example due to network outages, server failure, termination of license, and/or other causes or reasons), thus your decision to use and/or rely upon the Harmonagon app and website are at your sole risk and responsibility.

Limitation of Liability. Under no circumstances shall Radical LLC or any of its principals, partners, directors, managers, or employees be held liable for any direct, indirect, incidental, consequential, special, or exemplary damages due to your inability to access or use the Harmonagon app and website at any time or for any reason. Nor shall Radical LLC or any of its principals, partners, directors, managers, or employees be held liable for any unintended, improper, inappropriate, or illegal use of the Harmonagon app and/or website.