One rule,
67 sounds

For reference on all of your digital devices!

Makes great wallpaper.

Transform your music room with this B-stock poster print of The Color Tree - there will be unique differences from the usual look of the poster - yours might have small wrinkles or rough edges, a darker or greener background, bolder text, or other issues due to random printing variations.

Offered at a special discounted price!

Explore this map of 67 connected sounds, and derive many familiar scales and chords along the way, such as the power chords, suspended sounds, pentatonic scales, the seven major modes, the bebop scale, and many more.

A Digital Download included with every poster purchase, for all your devices.

Transform your music room with this high-quality poster print of The Color Tree - a unique set of 67 interrelated sounds that emerges naturally from the circle of fifths: from the simple power chords in Row 2 to the major pentatonic scale in Row 5, the modes of the major scale, bebop scale and more.

Explore the sounds on The Color Tree and expand your knowledge of harmony, composition and improvisation!

What's included:

• Premium quality 36”x24” poster print
• Digital download for all your devices

Stop memorizing rules.
Start understanding sound.

Explore Lesson 1 for free!

Most music theory courses are history lessons in disguise. They force you to memorize arbitrary naming conventions established centuries ago, telling you what to play without ever explaining why.

The Fundamentals of Harmony strips away the baggage to focus on the objective, physical underpinnings of music. Starting from a single 100Hz vibration, you will interact with beautifully designed digital canvases to discover how frequency, the harmonic series, and musical intervals emerge from physics, logic, and mathematics. Not human invention.


What You Get:


• Interactive Digital Learning: Leave the textbook behind. Learn harmony intuitively through sleek, playable visualizations directly in your browser, on any device.

• The Objective Truth of Sound: Master what is actually behind the music. Discover how a vibrating string naturally divides to create harmonies like the perfect fifth.

• Lifetime Access & Future Updates: Pay once. As the course expands with new modules, deeper concepts, and interactive features, you get every single update instantly at no extra cost.

• Bonus: Includes a high-res digital download of The Color Tree poster.

Read more about the course and try Lesson 1 FREE

Already own the course? Get back in

Made it through The Color Tree? Gain full, lifetime access to the Color Encyclopedia, a catalog of the 351 musical "colors" - distinct pitch-class sets that cover the entirety of the 12 tone system of harmony.

Using this tool, you can:

• Explore detailed entries on each color, including structure, properties, and relationships.
• Sort by number of notes, interval size, and more.

Each row on the Color Tree is just one of 12 of the 351 entries in the Color Encyclopedia.

Access here: http://colortreemusic.com/encyclopedia

Watch the intro video