Learn

Understand the logic behind chord voicings — step by step.

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Understanding Intervals

The foundation of music theory

Learn all musical intervals — from seconds to thirteenths. Understand how chords are built from the ground up.

Beginner

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Understanding Shell Voicings

The 3-Note Method

Learn to play any seventh chord with just 3 notes: root, third, and seventh.

Beginner

The Basic Chords

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Major Seventh (Maj7) Root + major third + major seventh

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Dominant Seventh (7) Root + major third + minor seventh

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Minor Seventh (m7) Root + minor third + minor seventh

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Scale Degree Theory

Understand chords by their function

Learn the 7 degrees of the major scale and how chords relate: tonic, subdominant, dominant, and the most important progressions.

Intermediate

The Tonic Family

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Degree I — Maj7 (Tonic) Home — rest and resolution

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Degree vi — m7 (Tonic Sub) The minor version of the tonic

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Degree iii — m7 (Mediant) Between tonic and dominant

The Subdominant

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Degree IV — Maj7 (Subdominant) Movement away from the tonic

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Degree ii — m7 (Subdominant Sub) The most important minor chord in jazz

The Dominant

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Degree V — Dom7 (Dominant) Tension — wants to return to the tonic

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Degree vii° — m7♭5 (Dominant Sub) Half-diminished — rare but important

Progressions

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The ii-V-I Progression The heartbeat of jazz

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The Turnaround (I-vi-ii-V) Back to the beginning

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Ultimate Plan

From Zero to Master

The complete learning journey: all chord types, all voicings, all keys. 8 modules — from your first seventh chord to altered dominants.

Beginner

Fundamentals: The 3 Core Chords

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Major 7th (Maj7) Root Position

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Dominant 7th (7) Root Position

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Minor 7th (m7) Root Position

Shell Voicings

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Maj7 Shell Root + 3rd + 7th

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Dom7 Shell Root + 3rd + ♭7

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m7 Shell Root + ♭3 + ♭7

Sixth & Special Chords

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Major 6th (6) Alternative to Maj7

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Minor 6th (m6) Minor + major 6th

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Half-Diminished (m7♭5) Typical ii in minor

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Diminished 7th (dim7) Symmetric structure

Extended Chords (9th)

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Major 9th (Maj9) Maj7 + 9th

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Dominant 9th (9) Dom7 + 9th

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Minor 9th (m9) m7 + 9th

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Six-Nine (6/9) Open ending chord

Full & Half-Shell Voicings

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Maj7 Full Voicing R – 7 – 3 – 5

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Dom7 Full Voicing R – ♭7 – 3 – 5

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m7 Full Voicing R – ♭7 – ♭3 – 5

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Half-Shell Voicing 3 – R – 7

Rootless Voicings

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Rootless A — Maj7 3 – 5 – 7 – 9

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Rootless A — Dom7 3 – 5 – ♭7 – 9

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Rootless A — m7 ♭3 – 5 – ♭7 – 9

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Rootless B — Maj7 7 – 9 – 3 – 5

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Rootless B — Dom7 ♭7 – 9 – 3 – 5

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Rootless B — m7 ♭7 – 9 – ♭3 – 5

Inversions

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1st Inversion — Maj7 3rd in bass

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2nd Inversion — Maj7 5th in bass

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3rd Inversion — Maj7 7th in bass

Altered & Advanced

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Dominant #9 (Hendrix) The Purple Haze sound

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Dominant ♭9 Maximum tension

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Lydian (Maj7#11) Floating and modern

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Minor 11 (m11) Modal minor sound

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Dominant 13 (13) Big band color

Learn

Understanding Intervals

Thirds & Tritone

Fifths & Sixths

Sevenths

Extended Intervals

Understanding Shell Voicings

The Basic Chords

Scale Degree Theory

The Tonic Family

The Subdominant

The Dominant

Progressions

Ultimate Plan

Fundamentals: The 3 Core Chords

Shell Voicings

Sixth & Special Chords

Extended Chords (9th)

Full & Half-Shell Voicings

Rootless Voicings

Inversions

Altered & Advanced