B♭ Sus4 Chord

Bbsus4 Level 4: The Studio

B♭ Sus4 (Bbsus4) is built from the notes Bb, Eb, F. Its intervals are Root — Perfect 4th — Perfect 5th. Tense, anticipatory, and leaning forward. Sus4 replaces the third with a fourth that sits just one semitone above where the major third would be, creating a pull toward resolution.

Hear B♭ Sus4 Chord

Piano sample · tap to play

Notes and intervals

Interval Semitones Note
Root 0 Bb
Perfect 4th 5 Eb
Perfect 5th 7 F

What does b♭ sus4 chord sound like?

Tense, anticipatory, and leaning forward. Sus4 replaces the third with a fourth that sits just one semitone above where the major third would be, creating a pull toward resolution.

B♭ Sus4 Chord in music

A full suspension (Bb-Eb-F) with a horn-like quality. Common in jazz, gospel, and soul music where Bb major is a home key.

How to recognise b♭ sus4 chord by ear

Sus4 sounds like it's about to resolve — there's a tension that leans downward. Compare it to sus2: sus4 pushes, sus2 floats. If the chord feels like it's waiting for something, that's sus4.

Practice identifying this chord in ChordFrog's Level 4: The Studio .

Practice tip

Bbsus4 (Bb-Eb-F) has a horn-section quality — all three notes sit naturally for trumpet and trombone. Practise resolving Bbsus4 to Bb major (Eb drops to D). The resolution has a warm, brass-band character that's distinct from sus4 resolutions on guitar-friendly roots.

Frequently asked questions

What notes are in a B♭ Sus4 chord?
B♭ Sus4 (Bbsus4) contains three notes: Bb, Eb, F. The intervals are Root, Perfect 4th, Perfect 5th.
How do I recognise B♭ Sus4 by ear?
Sus4 sounds like it's about to resolve — there's a tension that leans downward. Compare it to sus2: sus4 pushes, sus2 floats. If the chord feels like it's waiting for something, that's sus4. Practice identifying B♭ Sus4 in ChordFrog's Level 4 (The Studio).
What level is B♭ Sus4 in ChordFrog?
B♭ Sus4 is introduced at Level 4: The Studio. This level adds suspended chords alongside major and minor triads.

Other Bb chords

B♭ Major Chord B♭ Minor Chord B♭ Diminished Chord B♭ Augmented Chord B♭ Sus2 Chord

All Sus4 Chords chords

C Sus4 Chord D♭ Sus4 Chord D Sus4 Chord E♭ Sus4 Chord E Sus4 Chord F Sus4 Chord F♯ Sus4 Chord G Sus4 Chord A♭ Sus4 Chord A Sus4 Chord B Sus4 Chord

Hear b♭ sus4 chord for yourself

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