Theory
LearnFoundations and guided study
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Harmony Explorer

Choose a key and progression first. Open cadences and other secondary views when you want them.

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Key

Common Progressions

C Major: I-IV-V-I

Most common progression

I
Major
CEG
Tonic
→
IV
Major
FAC
Subdominant
→
V
Major
GBD
Dominant
→
I
Major
CEG
Tonic

Functional Harmony

Tonic (T)

Stable, home

I, iii, vi

Subdominant (S)

Moving away

ii, IV

Dominant (D)

Tension, pull to tonic

V, vii°

Visual Tools

Chord Progression Flowchart
Visualize common progression paths
Circle of Fifths
Key relationships and modulations
Roman Numeral Analysis
Understanding harmonic function

Continue Learning

Major Key Harmony
Diatonic chords in major keys
Minor Key Harmony
Natural, harmonic, and melodic minor
Cadences
Authentic, plagal, half, and deceptive
Harmonic Functions
Tonic, subdominant, and dominant roles
Progression Basics
Building effective chord progressions
Roman Numeral Analysis
Analyzing harmony with Roman numerals