The Piano Chord Collection — Suspended 2nd & 4th
PianoChord.org
Supports: sus2 chord formula and written tone pattern
Scope: Supports the chord formula and spelling only; keyboard layouts are PianoGrid examples, and no fingering is assigned.
The Bbsus2 chord contains B♭, C and F. Also written B♭sus2, it has formula 1–2–5. C replaces the third D of B♭ major, leaving a three-note suspended collection.
Build the Bbsus2 chord by keeping B♭ and F from B♭ major and substituting C for D. B♭–C spans two semitones and B♭–F seven. Neither D nor D♭ belongs to this suspended collection; the third is absent rather than lowered.
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 Bbsus2 chord with B♭, C and F. E♭ instead of C gives Bbsus4. Adding D supplies a third and creates a four-note collection, rather than the suspended triad requested by this pitch-class exercise.
B♭sus2 uses 1–2–5: B♭–C–F.
Compared with B♭ major, replace the third with the second.
The chord tones stay the same while the lowest chord tone changes.
| Position | Symbol | Notes, low to high | Bass |
|---|---|---|---|
| Root position, current selection | B♭sus2 | B♭3–C4–F4 | B♭3 |
| First inversion | B♭sus2/C | C4–F4–B♭4 | C4 |
| Second inversion | B♭sus2/F | F4–B♭4–C5 | F4 |
The Bbsus2 chord diagrams show pitches, registers and note order without finger numbers. C starts the first inversion and F the second. Read the B♭ accidental and octave labels before comparing the positions; the diagram is not a prescribed hand shape.
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: sus2 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♭, C and F: root, major second and perfect fifth. C and F are natural notes, despite the flat in the root name.
The Bbsus2 chord uses C, the second above B♭. Bbsus4 uses E♭, the fourth. Both retain the root B♭ and fifth F and omit the third.
No. The Bbsus2 chord omits D. The complete Bbadd9 collection contains B♭, D, F and C. Changing the octave of C does not make those note sets identical.
No. This exercise checks a pitch-class set, so order and octave do not affect its result. Use the position selector to compare the authored inversions and their bass notes.
Select the three pitch classes that make B♭sus2, 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♭–C–F · Formula: 1, 2, 5
Dots mark the notes to play. C4 is middle C. Numbers identify octaves, not fingers.