The Bbsus4 chord contains B♭, E♭ and F. Also written B♭sus4, it uses formula 1–4–5. E♭ replaces the third D of B♭ major; compare root position and two inversions.
Build the Bbsus4 chord by replacing D in B♭ major with E♭ while retaining B♭ and F. B♭–E♭ spans five semitones and B♭–F seven. D natural and D♭ are both absent, so this collection contains a fourth rather than a major or minor third.
Preserve the written note spelling shown for this chord.
Choose a position to keep the written notes, sounding keys, bass note, playback and print reference synchronized.
Build the Bbsus4 chord with B♭, E♭ and F. Choosing C instead of E♭ produces Bbsus2; choosing D produces B♭ major. The exercise checks pitch classes without determining an inversion from click order or assessing live playing.
B♭sus4 uses 1–4–5: B♭–E♭–F.
Compared with B♭ major, replace the third with the fourth.
The chord tones stay the same while the lowest chord tone changes.
| Position | Symbol | Notes, low to high | Bass |
|---|---|---|---|
| Root position, current selection | B♭sus4 | B♭3–E♭4–F4 | B♭3 |
| First inversion | B♭sus4/E♭ | E♭4–F4–B♭4 | E♭4 |
| Second inversion | B♭sus4/F | F4–B♭4–E♭5 | F4 |
Choose a Bbsus4 chord position to compare its bass and octave labels. E♭ starts the first inversion and F the second. The diagrams show written pitches without assigned fingers or a required one-hand shape; keep both flats when reading the notes.
Use the written notes, keyboard positions and playback without treating the diagram as a required hand shape.
Read left- and right-hand finger numbersPianoChord.org
Supports: sus4 chord formula and written tone pattern
Scope: Supports the chord formula and spelling only; keyboard layouts are PianoGrid examples, and no fingering is assigned.
B♭, E♭ and F: root, perfect fourth and perfect fifth. There is no third in this three-note collection.
The Bbsus4 chord uses E♭, the fourth above B♭. Bbsus2 uses C, the second. Both retain B♭ and F while omitting the third.
Moving E♭ down to D changes the Bbsus4 chord to B♭ major. That is a useful comparison to hear, but the surrounding music determines whether a resolution occurs.
E♭ identifies the first inversion and F the second. Root position has B♭ lowest. Each displayed position retains all three chord tones while changing their order.
Select the three pitch classes that make B♭sus4, then check your answer.
This one-octave exercise checks pitch classes. Order and octave do not affect the result; fingering and live performance are not assessed.
One octave, C through B. Select a key again to remove it.
Chord tones: B♭–E♭–F · Formula: 1, 4, 5
Dots mark the notes to play. C4 is middle C. Numbers identify octaves, not fingers.