The B-flat augmented chord (B♭+) is a three-note chord consisting of the notes B♭, D, and F♯. It is formed by raising the fifth of the B♭ major triad (F) by a half step to F♯, creating an augmented interval that gives the chord a tense and unresolved character. This chord is commonly used in classical, jazz, and contemporary music to add drama, suspense, and a sense of forward motion within chord progressions. The B-flat augmented chord serves as a powerful tool for modulation and creating unexpected harmonic shifts, providing musicians with a distinctive sound that stands out due to its bright, edgy, and slightly dissonant quality.
Name: B-flat augmented chord
Symnonyms:: B-flat augmented triad
Notes: B♭, D, F♯
Intervals: 1, 3, ♯5
Chord symbol: B♭+
Alternative symbols: B♭aug, B♭(♯5)
Type: Triad (three-note chord)
B-flat augmented chord on the Staff
B-flat augmented chord on Piano
B-flat augmented chord on Guitar
B-flat augmented 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.