The B-flat major ninth chord (B♭maj9) is a five-note chord consisting of the notes B♭, D, F, A, and C. It is formed by extending the B♭ major seventh chord (B♭, D, F, A) with the addition of the ninth (C), creating a chord that combines the smooth, rich sound of the major seventh with the bright, colorful tone of the ninth. This chord is commonly used in jazz, R&B, and contemporary music to add harmonic sophistication and emotional depth to progressions. The B-flat major ninth chord serves as a versatile tonic or central harmony, offering lush voice leading, enhancing melodic expression, and providing a warm, elegant character to compositions.
Name: B-flat major ninth chord
Notes: B♭, D, F, A, C
Intervals: 1, 3, 5, 7, 9
Chord symbol: B♭maj9
Alternative symbols: B♭Δ9, B♭ma9, B♭MA9, B♭M9
Type: Pentad (five-note chord)
B-flat major ninth chord on the Staff
B-flat major ninth chord on Piano
B-flat major ninth chord on Guitar
B-flat major 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.