What is a Quintal Harmony?

Quintal harmony is a type of harmony in which chords are built by stacking intervals of fifths instead of the traditional thirds used in most Western chord structures. In standard harmony, chords are typically formed by stacking thirds, such as C–E–G for a C major chord. In quintal harmony, notes are arranged in fifths, for example C–G–D.

This approach produces a more open and spacious sound because fifths are wider intervals than thirds. Quintal chords often sound powerful, neutral, or ambiguous since they may not clearly define whether the harmony is major or minor. This quality makes them useful for creating modern or atmospheric musical textures.

Quintal harmony appears in modern classical music, jazz, film scores, and rock music. It is often used to create broad harmonic textures, dramatic effects, or modal sounds. Stacked fifths are also common in orchestral writing and cinematic music because they can produce strong, resonant chord structures.