The B minor thirteenth chord, often written as Bm13, is a seven-note chord consisting of B (root), D (minor third), F♯ (perfect fifth), A (minor seventh), C♯ (major ninth), E (perfect eleventh), and G♯ (major thirteenth). By extending the basic B minor seventh chord with additional ninth, eleventh, and thirteenth intervals, this chord achieves a rich, complex, and harmonically layered sound. The B minor thirteenth chord is commonly used in jazz, fusion, and contemporary music to provide lush, expressive textures and sophisticated harmonic movement within progressions. Its extended structure allows musicians to explore intricate voicings and nuanced emotional expressions, making it a powerful tool for creating depth, tension, and dynamic interplay in musical compositions.
Name: B minor thirteenth chord
Notes: B, D, F♯, A, C♯, E, G♯
Intervals: 1, ♭3, 5, ♭7, 9, 11, 13
Chord symbol: Bm13
Alternative symbols: B-13, Bmi13, Bmin13
Type: Heptad (seven-note chord)
B minor thirteenth chord on the Staff
B minor thirteenth chord on Piano
B minor thirteenth chord on Guitar
B 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.
