The B-flat added ninth chord (B♭add9) is a four-note chord consisting of the notes B♭, D, F, and C. It is created by adding the major ninth (C) to the B♭ major triad (B♭, D, F), producing a chord that retains the stability of the major triad while introducing a bright and colorful extension. This chord is commonly used in jazz, pop, and contemporary music to add richness and harmonic interest to progressions without the tension of a dominant seventh. The B-flat added ninth chord provides a smooth and uplifting sound, making it a versatile choice for both melodic accompaniment and harmonic layering, enhancing the overall texture and emotional expression of a piece.
Name: B-flat added ninth chord
Symnonyms:: B-flat added second chord
Notes: B♭, D, F, C
Intervals: 1, 3, 5, 9
Chord symbol: B♭add9
Alternative symbols: B♭(add9), B♭add2, B♭(add2)
Type: Tetrad (four-note chord)
B-flat added ninth chord on the Staff
B-flat added ninth chord on Piano
B-flat added ninth chord on Guitar
B-flat added 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.
