Theory
🎹ChordsIntermediatemajor-seventhjazz-harmonytonic-functionsophisticated-harmony

Major Seventh Chord

A major triad with an added major seventh interval, creating a bright, sophisticated, and stable sonority that defines the tonic function in jazz while adding colorful complexity to classical and pop harmony.

I. Conceptual Positioning

🎯Problem Solved

How to create stable tonic harmony with more sophistication than a plain triad—the major seventh adds jazzy color and harmonic richness without sacrificing consonance or resolution.

🔨Skills Built

  • Construct major seventh chords in all keys
  • Apply Imaj7 as tonic in jazz progressions
  • Voice lead smoothly with major sevenths
  • Understand major seventh vs. dominant seventh
  • Use IVmaj7 as subdominant color

🔗Connects To

chords/seventh-overviewchords/major-minorharmony/functionaljazz/harmonyvoicing/jazz-pianoscales/majorscales/lydian

II. Knowledge Architecture

This section will be populated with core concepts, sub-concepts, and micro-concepts in future MDX content.

IV. Charts, Maps & Tables

Visual artifacts will be embedded in MDX content as React components.

V. Logical Learning Sequence

Learning progression will be defined in MDX content.

VII. Analytical Application

Cross-genre examples (classical, jazz, pop, film) will be provided in MDX content.

IX. Cross-Topic Network

Concept bridges and overlapping zones will be detailed in MDX content.

XI. Synthesis & Meta-Understanding

Mastery meaning and transformational impact will be explored in MDX content.

What This Unlocks

  • Enables jazz tonic sound (Imaj7)

  • Foundation for extended chords (maj9, maj11, maj13)

  • Creates sophisticated pop/R&B harmony

  • Basis for Lydian modal color