The B-flat minor thirteenth chord (B♭m13) is a seven-note chord consisting of the notes B♭, D♭, F, A♭, C, E♭, and G. It is formed by extending the B♭ minor seventh chord (B♭, D♭, F, A♭) with the addition of the ninth (C), eleventh (E♭), and thirteenth (G), creating a rich and complex harmony. This chord is commonly used in jazz, R&B, and contemporary music to provide lush, expressive textures and deep emotional resonance within chord progressions. The B-flat minor thirteenth chord serves as a versatile harmonic tool, offering smooth voice leading, enhancing melodic expression, and adding sophisticated tonal color while preserving the introspective and moody character of the minor tonality.
Name: B-flat minor thirteenth chord
Notes: B♭, D♭, F, A♭, C, E♭, G
Intervals: 1, ♭3, 5, ♭7, 9, 11, 13
Chord symbol: B♭m13
Alternative symbols: B♭-13, B♭mi13, B♭min13
Type: Heptad (seven-note chord)
B-flat minor thirteenth chord on the Staff
B-flat minor thirteenth chord on Piano
B-flat minor thirteenth chord on Guitar
B-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.
