The G-flat dominant thirteenth chord is a highly extended and harmonically rich chord consisting of the notes G♭, B♭, D♭, F♭, A♭, C♭, and E♭. By adding the thirteenth to the dominant eleventh structure, this chord achieves a full, resonant sound that combines tension, color, and resolution in a single voicing. It is frequently used in jazz, fusion, and contemporary music to create intricate, sophisticated progressions that convey depth and expressive nuance. The G-flat dominant thirteenth chord provides musicians with a powerful tool to enrich harmonic textures and add emotional complexity to their compositions and performances.
Name: G-flat dominant thirteenth chord
Notes: G♭, B♭, D♭, F♭, A♭, C♭, E♭
Intervals: 1, 3, 5, ♭7, 9, 11, 13
Chord symbol: G♭13
Type: Heptad (seven-note chord)
G-flat dominant thirteenth chord on the Staff
G-flat dominant thirteenth chord on Piano
G-flat dominant thirteenth chord on Guitar
G-flat dominant thirteenth chord on Ukulele
Rowan Ellis is a musician and educator with a passion for exploring the language of harmony and melody. With years of experience across classical, jazz, and contemporary styles, Rowan breaks down music theory into clear, practical insights. His goal is to make chords and scales less intimidating and more inspiring for every musician.