What is harmony in music?

Quick Scoop

Harmony in music is when two or more notes are played or sung at the same time to support a melody and create a fuller sound. It helps give music richness, depth, and emotion, and it often moves between tension and release through chords and chord progressions.

In simple terms

• Melody is the tune you sing or remember.
• Harmony is the notes underneath or around that tune.
• Together, they make music feel more complete and expressive.

How it works

Harmony is often described as the “vertical” side of music because it looks at notes stacked at the same moment, like in chords. A chord is a group of notes sounded together, and chord progressions are the way those chords move from one to another.

Why it matters

Harmony can make music sound warm, tense, bright, sad, or dramatic depending on which notes are combined. In many styles of music, harmony is a major part of how songs create mood and interest.

Example

If someone sings a simple tune and a guitar plays supporting chords underneath it, the guitar is adding harmony. That support can make the melody feel richer and more complete.

TL;DR

Harmony is the combination of notes played together that supports a melody and adds depth, texture, and emotion to music.