Theory
🎹ChordsAdvancedaugmented-major-seventhimpressionismwhole-tonelydian-augmentedcoloristic-harmonysymmetry

Augmented-Major Seventh Chord

An augmented triad with an added major seventh interval, creating an uplifting, ethereal, and harmonically ambiguous sonority that appears in impressionist music, jazz reharmonization, and film scores—combining augmented's symmetry with major seventh's shimmer.

Interactive Visualizations

Augmented-Major 7th vs. Other Augmented Chords

Comparison of +maj7, +7, and augmented triad showing seventh quality differences

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Chromatic Voice Leading Possibilities

How augmented fifth and major seventh create contrary motion resolution

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Whole-Tone Scale Relationship

How +maj7 fits into whole-tone harmony

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Symmetry and Enharmonic Properties

Three unique augmented-major sevenths via symmetry

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Historical Evolution

From late Romantic rarity to impressionist staple to jazz color

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Genre Application Matrix

Usage patterns in impressionism, film music, jazz, and contemporary

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I. Conceptual Positioning

🎯Problem Solved

How to create upward-pulling harmony with bright, floating character—the augmented-major seventh provides coloristic alternatives to standard tonic and dominant functions, enabling smooth voice leading via chromatic contrary motion and creating the 'levitating' sound of impressionist and film music.

🔨Skills Built

  • Construct augmented-major seventh chords in all keys
  • Apply +maj7 for coloristic reharmonization
  • Understand the dual upward pull (augmented fifth + major seventh)
  • Use +maj7 in impressionist and film contexts
  • Exploit chromatic voice leading possibilities

🔗Connects To

chords/seventh-overviewchords/diminished-augmentedchords/major-seventhscales/whole-tonescales/lydian-augmentedharmony/chromaticimpressionism/harmonyjazz/reharmonizationsymmetry/limited-transposition

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 coloristic tonic substitute (Imaj7♯5)

  • Foundation for whole-tone and Lydian augmented scales

  • Creates impressionist 'floating' harmony

  • Basis for jazz reharmonization techniques