The B-flat suspended fourth chord (B♭sus4) is a three-note chord consisting of the notes B♭, E♭, and F. It is formed by replacing the major third of the B♭ major triad with a perfect fourth (E♭), creating a chord that has a suspended, open, and unresolved quality. This chord is commonly used in pop, rock, and contemporary music to add tension and anticipation within chord progressions. The B-flat suspended fourth chord provides a versatile harmonic option, offering smooth voice leading, a bright and spacious sound, and a sense of melodic movement that enhances the overall texture and emotional impact of a composition.
Name: B-flat suspended fourth chord
Notes: B♭, E♭, F
Intervals: 1, 4, 5
Chord symbol: B♭sus4
Alternative symbols: B♭(sus4), B♭sus
Type: Triad (three-note chord)
B-flat suspended fourth chord on the Staff
B-flat suspended fourth chord on Piano
B-flat suspended fourth chord on Guitar
B-flat suspended fourth 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.
