The B minor ninth chord, often written as Bm9, is a five-note chord consisting of B (root), D (minor third), F♯ (perfect fifth), A (minor seventh), and C♯ (major ninth). By extending the basic B minor seventh with the added ninth, this chord achieves a rich and sophisticated harmonic texture, combining the melancholic quality of the minor triad with the smooth, melodic extension of the ninth. The B minor ninth chord is commonly used in jazz, R&B, and contemporary music to add depth, color, and expressive nuance to chord progressions. Its lush sound allows musicians to create a sense of emotional complexity and tension while maintaining a cohesive and versatile harmonic foundation within compositions.
Name: B minor ninth chord
Notes: B, D, F♯, A, C♯
Intervals: 1, ♭3, 5, ♭7, 9
Chord symbol: Bm9
Alternative symbols: B-9, Bmi9, Bmin9
Type: Pentad (five-note chord)
B minor ninth chord on the Staff
B minor ninth chord on Piano
B minor ninth chord on Guitar
B minor ninth 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.
