🎼 Music Theory & Chords

Seventh Chord Theory

Add rich color and jazz sophistication to your playing with seventh chords - the gateway to advanced harmony.

Jazz Foundation: Rich Harmony: Bluesy Sound: Advanced Voicings:
🎼 Chord Construction & Voicings

Seventh Chords

Add rich color and jazz sophistication to your playing with seventh chords - the gateway to advanced harmony.

Jazz FoundationRich HarmonyBluesy SoundAdvanced Voicings

📖 Theory Fundamentals

What Are Seventh Chords?

  • •Definition: Four-note chords adding a 7th interval to a triad
  • •Formula: Root + 3rd + 5th + 7th
  • •Types: Dominant 7, Major 7, Minor 7, Diminished 7
  • •Sound Quality: Rich, colorful, tension-filled
  • •Function: Dominant resolution, jazz harmony, blues color

Musical Applications

  • •Jazz: Foundation of jazz harmony
  • •Blues: Dominant 7th chords throughout
  • •Rock: Bluesy riffs and turnarounds
  • •R&B/Soul: Smooth, sophisticated voicings

📐 Understanding Seventh Chord Construction

G7 (Dominant 7th) Example

  • •Root: G (1st degree)
  • •Major 3rd: B (3rd degree)
  • •Perfect 5th: D (5th degree)
  • •Minor 7th: F (7th degree)
  • •Result: Tension-filled, wants to resolve

Interval Quality

  • •Major 3rd + Minor 7th: Dominant quality
  • •Creates tritone: Drives resolution
  • •Tension: Wants to resolve to tonic
  • •Function: V7 chord in key
  • •Psychology: Expectation, anticipation

Scale Relationship

  • •Built from: Mixolydian mode (dominant)
  • •Key centers: V7 resolves to I
  • •Blues: I7-IV7-V7 all dominant
  • •Jazz: ii-V-I progressions
  • •Cadences: Strongest resolution in tonal music

🎸 Essential Dominant 7th Chords

💡 Start Here

These are the fundamental dominant 7th chords every guitarist should learn.

E7

OOOO21

Notes: E-G#-B-D

Fingering: Easy open shape

Use: Blues in A, key of A

A7

XOOO23

Notes: A-C#-E-G

Fingering: Simple open shape

Use: Blues in D, key of D

D7

XXO213

Notes: D-F#-A-C

Fingering: Compact open shape

Use: Blues in G, key of G

🎼 Common Seventh Chord Progressions

12-Bar Blues I7-IV7-V7

Chord Sequence
XOOO23

A7

I7

XXO213

D7

IV7

OOOO21

E7

V7

Strumming Pattern

D - DU - D - DU

Shuffle blues feel

Tempo: 80-120 BPM

Feel: Bluesy, driving

Genre: Blues, Rock, R&B

Blues Progression (A7-D7-E7)

The foundational blues progression - dominant 7th chords create the characteristic bluesy tension heard in countless blues and rock songs.

💡 Practice Tips for Chord Progressions

Technique Focus
  • •Practice transitioning between 7th chord shapes
  • •Focus on muting unused strings cleanly
  • •Use shuffle rhythm for authentic blues feel
  • •Keep the 7th note ringing clearly
Musical Application
  • •Essential for blues and jazz styles
  • •Creates tension that resolves satisfyingly
  • •Adds sophistication to simple progressions
  • •Foundation for more complex extended chords

🎶 Famous Songs Using Seventh Chords

Blues & Rock Classics

  • •"Red House" - Jimi Hendrix (B7-E7-F#7)
  • •"Pride and Joy" - Stevie Ray Vaughan (E7-A7-B7)
  • •"Johnny B. Goode" - Chuck Berry (Bb7-Eb7-F7)
  • •"Before You Accuse Me" - Eric Clapton (E7-A7-B7)
  • •"The Thrill Is Gone" - B.B. King (Bm7-Em7)

⚡ Practice Exercises

💡 Building Seventh Chord Skills

These exercises will help you master seventh chords and their applications.

1Exercise 1: Dominant 7th Chord Changes

Progression: E7 - A7 - D7 - G7

Practice clean transitions between open dominant 7th chords

Tip: Focus on letting the 7th note ring clearly

🚀 Advanced Seventh Chord Concepts

Seventh Chord Types Compared

  • •Dominant 7th: Major triad + minor 7th (G7)
  • •Major 7th: Major triad + major 7th (Gmaj7)
  • •Minor 7th: Minor triad + minor 7th (Gm7)
  • •Half-Diminished: Dim triad + minor 7th (Gm7b5)
  • •Diminished 7th: Dim triad + dim 7th (Gdim7)

Songs Using This Chord

Why Songs Work Hub →

Hear how this chord is used in real songs with harmonic music theory breakdowns

All Blues by Miles Davis

intermediateView Analysis →

Blackbird by The Beatles

💡 Harmonic Secret Available
intermediateWhy It Works →

Bohemian Rhapsody by Queen

💡 Harmonic Secret Available
advancedWhy It Works →

Classical Gas by Mason Williams

advancedView Analysis →

Crossroads by Cream

advancedView Analysis →

Dust My Broom by Elmore James

advancedView Analysis →

Europa (Earth's Cry Heaven's Smile) by Santana

advancedView Analysis →

Folsom Prison Blues by Johnny Cash

beginnerView Analysis →

Here Comes the Sun by The Beatles

💡 Harmonic Secret Available
intermediateWhy It Works →

Master of Puppets by Metallica

💡 Harmonic Secret Available
expertWhy It Works →

Nothing Else Matters by Metallica

💡 Harmonic Secret Available
intermediateWhy It Works →

Paint It Black by The Rolling Stones

intermediateView Analysis →

Playing God by Polyphia

💡 Harmonic Secret Available
expertWhy It Works →

Pride and Joy by Stevie Ray Vaughan

advancedView Analysis →

Roundabout by Yes

advancedView Analysis →

(Sittin' On) The Dock of the Bay by Otis Redding

beginnerView Analysis →

Superstition by Stevie Wonder

intermediateView Analysis →

Tears in Heaven by Eric Clapton

💡 Harmonic Secret Available
intermediateWhy It Works →

Texas Flood by Stevie Ray Vaughan and Double Trouble

💡 Harmonic Secret Available
expertWhy It Works →

The Thrill Is Gone by B.B. King

intermediateView Analysis →

Voodoo Child (Slight Return) by Jimi Hendrix

💡 Harmonic Secret Available
advancedWhy It Works →

What's Going On by Marvin Gaye

intermediateView Analysis →
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Continue Your Chord Journey

Now that you understand seventh chords, explore how they connect to other chord types and advanced harmonic concepts.