AP Music Theory
Advanced Placement Music Theory covering musical notation, harmony, and composition.
Advanced Topics
Advanced Harmonic Functions
Exploring Advanced Harmonic Functions
Chords have different roles, called functions, within a key. Understanding these helps you see how music moves forward and creates tension or release.
Tonic, Dominant, and Subdominant
- Tonic (I): The "home" chord; music feels resolved here.
- Dominant (V): Creates tension that wants to resolve to tonic.
- Subdominant (IV): Leads away from tonic, often heading toward dominant.
Secondary Dominants and Modulation
- Secondary dominants (like V/V) temporarily make another chord sound like a tonic.
- Modulation is when the music changes key, often using pivot chords.
Chromaticism
Advanced harmony often includes notes outside the key for expressive color.
Real-World Connections
These techniques appear everywhere from classical symphonies to movie soundtracks, shaping how music feels and flows.
Examples
A jazz pianist uses secondary dominants to spice up a chord progression.
A film composer modulates to a new key for dramatic effect.
In a Nutshell
Advanced harmonic functions add color, tension, and movement to music using creative chord choices.