At this point in the pathway, we’ve looked at many ways to create harmonic color and reshape familiar progressions. Now we’re going to take that curiosity a step further by working from two simple anchor points: a melody note on top and a G bass note underneath. By moving chromatically from C upward, we can start to hear how each melody note opens the door to different chord qualities, substitutions, and reharmonization choices.

Key Learning Outcomes and Topics Covered

• Learn how to harmonize a chromatic melody over a fixed G bass note.
• Understand how each melody note relates intervallically to the bass note.
• Explore chord options for melody notes such as the 11, #11, 5, #5, 6, b7, 7, b9, 9, b3, 3, and root.
• Discover how major, minor, dominant, diminished, half-diminished, altered, sus, and upper-structure chords can all be used as reharmonization tools.
• Learn why some melody notes are more flexible, while others naturally narrow the harmonic choices.
• Practice thinking from both directions: from the bass note up to the melody note, and from the melody note back into possible chord functions.
• Develop the habit of judging each reharmonization by ear, rather than relying only on theory.
• Explore neutral voicings and parallel chord movement as a creative way to harmonize melody lines.
• Strengthen your ability to make reharmonization choices based on function, destination, color, and musical purpose.

Introduction

We begin with a simple but powerful idea: take one bass note, in this case G, and then harmonize every chromatic melody note above it. The first melody note is C, which functions as the 4 or 11 against G. From there, we ask a practical musical question: what kinds of chords can comfortably support that melody note?

That question becomes the doorway into the whole lesson. Instead of saying, “Here is the one correct chord,” we start exploring possibilities. A C over G might suggest a G11, G7sus4, Gm11, or even an F minor sound over G. A Db over G becomes #11 or b5, opening the door to diminished colors, G7b5, Gmaj7#11, and related sounds. Each melody note has its own set of possibilities, and each one teaches us something about how harmony can be shaped from the top down.

Lesson Summary

In this lesson, we explore a creative reharmonization approach built around two fixed points: a melody note on top and a G bass note underneath. By moving chromatically from C upward, we hear how each melody note suggests a different set of chord possibilities depending on its relationship to the bass. Some notes feel open and flexible, like the 11 or 9, while others point us toward more specific sounds, like the b9, #11, #5, b3, or major 7.

Rather than treating this as a strict formula, the lesson encourages us to use theory as a way to organize experimentation. We look at how a single melody note might function as a chord tone, extension, alteration, or upper-structure color, and then use our ears to decide which chord quality supports the musical moment. The same melody note can often belong to several different harmonic worlds, including major, minor, dominant, diminished, half-diminished, sus, or altered sounds.

A big part of the lesson is learning to ask better questions. What is the melody note in relation to the bass? Is the chord supposed to feel resolved, tense, neutral, or like it is moving somewhere else? Does the harmony need to support the melody gently, or create a surprising color? These questions help narrow down the possibilities while still leaving room for creativity.

The lesson also demonstrates how neutral voicings and parallel movement can be used to harmonize melody notes without locking every chord into a strong major, minor, or dominant identity. This gives us another way to create color and motion while keeping the melody clear.

The main takeaway is that reharmonization is not about memorizing every possible chord choice. It is about developing enough harmonic awareness to experiment with confidence, then letting the ear make the final decision. Sometimes one subtle chord change is all it takes to give a phrase a new shade of color.

Soundbites

• “If it sounds good, it is good.”
• “But if it doesn’t sound good, it doesn’t mean it’s wrong. You just have to maybe tweak it just a little bit to make it work.”
• “All these things are really, really more about creativity and experimentation and courage to try than they are about having formulas.”
• “The best way to use this technique is if you’ve got a melody passage and one of the notes is you want to harmonize it but you don’t know quite how.”

Closing Thoughts

This lesson gives us a wonderfully practical way to explore reharmonization from the inside out. By holding a G bass note and moving through the chromatic scale above it, we get to hear how every melody note carries its own set of harmonic possibilities. Some notes feel stable, some create tension, some open the door to altered sounds, and some invite us into unexpected colors.

As you practice this, take your time. Choose one bass note, move one melody note at a time, and see how many sounds you can find. Then listen carefully to what each chord wants to do. Does it want to resolve? Does it want to float? Does it want to surprise the ear? That kind of listening is where the real learning happens. Have fun with it, keep experimenting, and remember that even one small reharmonized moment can bring a whole new color to your playing.

Keywords

• Reharmonization
• Harmonic colors
• Chromatic scale
• Melody note harmonization
• Chord melody
• Jazz guitar harmony
• Chord substitutions
• Upper structures
• Parallel harmony
• Neutral voicings
• Chord function
• Chord quality

Downloads

Harmonizing a Chromatic Scale over a Single Bass Note