The B-flat dominant seventh chord (B♭7) is a four-note chord consisting of the notes B♭, D, F, and A♭. It is constructed by adding a minor seventh (A♭) to the B♭ major triad (B♭, D, F), resulting in a chord that blends the stability of the major triad with the added tension of the seventh. This chord is commonly used in various musical genres, including jazz, blues, and rock, to create a sense of tension that resolves to the tonic chord. The B-flat dominant seventh chord is often employed as a dominant function, providing a strong harmonic pull towards the tonic chord and adding a sense of anticipation and resolution to chord progressions. Its versatility and rich tonal quality make it a valuable addition to a musician’s harmonic vocabulary.
Name: B-flat dominant seventh chord
Symnonyms:: B-flat major-minor seventh chord
Notes: B♭, D, F, A♭
Intervals: 1, 3, 5, ♭7
Chord symbol: B♭7
Type: Tetrad (four-note chord)
B-flat dominant seventh chord on the Staff
B-flat dominant seventh chord on Piano
B-flat dominant seventh chord on Guitar
B-flat dominant seventh 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.