The G-flat minor 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 (E♭) to the G♭ minor eleventh chord, this chord creates a full, lush, and sophisticated sound that combines tension, resolution, and emotional depth. Frequently used in jazz, fusion, and contemporary music, the G-flat minor thirteenth chord allows musicians to explore complex harmonic textures, smooth voice-leading, and expressive progressions, making it a powerful tool for adding richness, color, and nuance to compositions.
Name: G-flat minor thirteenth chord
Notes: G♭, B𝄫, D♭, F♭, A♭, C♭, E♭
Intervals: 1, ♭3, 5, ♭7, 9, 11, 13
Chord symbol: G♭m13
Alternative symbols: G♭-13, G♭mi13, G♭min13
Type: Heptad (seven-note chord)
G-flat minor thirteenth chord on the Staff
G-flat minor thirteenth chord on Piano
G-flat minor thirteenth chord on Guitar
G-flat minor 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.
