Piano chord
B♭ Sus4 Chord
B♭sus4 is a sus4 chord built on B♭. It contains the notes B♭ – E♭ – F.
B♭sus4
Also written: B♭sus, A♯sus4
- B♭
- E♭
- F
Notes in B♭sus4
Count up from B♭ using the intervals below. The formula shows each note relative to the B♭ major scale.
| Notes | Intervals | Formula | Semitones |
|---|---|---|---|
| B♭ | Root | 1 | 0 |
| E♭ | Perfect 4th | 4 | 5 |
| F | Perfect 5th | 5 | 7 |
How to play B♭sus4 on piano
- Right hand: fingers 1–3–5 (thumb on B♭).
- Left hand: fingers 5–3–1 (little finger on the lowest note).
- Press the keys together, then try playing them one at a time as an arpeggio.
B♭sus4 inversions
An inversion puts a different note of B♭sus4 at the bottom. The notes stay the same, the colour and voice leading change.
Root position
B♭sus4B♭ – E♭ – F
1st inversion
B♭sus4/E♭E♭ – F – B♭
2nd inversion
B♭sus4/FF – B♭ – E♭
About sus4 chords
The 4th replaces the 3rd, creating anticipation — the chord leans forward, wanting to fall back to the major.
Sound: Tense & anticipating
Songs that use it
- Pinball Wizard · The WhoRock
- The Boxer · Simon & GarfunkelFolk
- More Than a Feeling · BostonRock
Keys that contain B♭sus4
B♭sus4 is built only from notes of these keys. The Roman numeral shows its role in each key.
Hear B♭sus4 with different sounds and compare it with other chords in the interactive builder.
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