The C minor thirteenth chord (Cm13) is a richly layered and harmonically sophisticated chord that extends the C minor seventh by incorporating the ninth (D), eleventh (F), and thirteenth (A) intervals. Comprising the notes C, E♭, G, B♭, D, F, and A, it creates a deep and complex sound that is often employed in jazz, fusion, and contemporary music to add emotional depth and harmonic interest. The C minor thirteenth chord blends the somber quality of the minor triad with the lush extensions, providing a versatile tool for smooth voice leading and dynamic chord progressions. Its expansive tonal palette makes it ideal for creating rich textures and sophisticated harmonic landscapes within compositions.
Name: C minor thirteenth chord
Notes: C, E♭, G, B♭, D, F, A
Intervals: 1, ♭3, 5, ♭7, 9, 11, 13
Chord symbol: Cm13
Alternative symbols: C-13, Cmi13, Cmin13
Type: Heptad (seven-note chord)
C minor thirteenth chord on the Staff
C minor thirteenth chord on Piano
C minor thirteenth chord on Guitar
C 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.
