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Scales, Arpeggios, and Harmony

How scales and arpeggios function within harmony and chord progressions

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Scales, Arpeggios, and Harmony

Welcome to Scales and Arpeggios. Each lesson shows how to use scales and arpeggios over real chord progressions—not as isolated fretboard patterns, but as tools for melodic improvisation.

How to Use These Lessons

Each lesson includes:

The Core Idea

Scales give you notes to choose from. Arpeggios tell you which notes matter most—the chord tones that define the harmony underneath your solo.

Instead of "I'm in C major, so I'll run the C major scale," think:

That shift—from key-based to chord-based thinking—is what makes solos sound connected to the music.

X:1
T:Arpeggios Outline Each Chord
K:C
M:4/4
L:1/4
"C" C E G E | "Am" A c e c | "F" F A c A | "G" G B d B ||

Play this example in Music Buddy. Turn on Tab if you need fretboard guidance, and Chords to see the underlying shapes. Compare it to running a C major scale up and down—the arpeggio version tracks each chord change.

Video Resource
Andrew Huang covers chords, harmony, and melody in one sitting
https://www.youtube.com/watch?v=rgaTLrZGlk0
—a useful overview before diving into the lessons.

Practice tip: Before each practice session, name the three notes in the chord you're soloing over. Root, third, fifth—that's your target list.

Further viewing

Let's begin with the harmonic foundation: chords and chord tones.

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