The C♭ 7sus4 chord is a four-note chord made up of C♭, F♭, G♭, and B♭♭. It is built from a root, perfect fourth, perfect fifth, and minor seventh.
Construction
C♭ 7sus4 = Root + Perfect 4th + Perfect 5th + Minor 7th = C♭ · F♭ · G♭ · B♭♭
| Note | Interval | Degree |
|---|---|---|
| C♭ | Root | 1 |
| F♭ | Perfect 4th | 11 |
| G♭ | Perfect 5th | 5 |
| B♭♭ | Minor 7th | ♭7 |
C♭ 7sus4 Inversions
| Position | Notes |
|---|---|
| Root Position | C♭ – F♭ – G♭ – B♭♭ |
| 1st Inversion | F♭ – G♭ – B♭♭ – C♭ |
| 2nd Inversion | G♭ – B♭♭ – C♭ – F♭ |
| 3rd Inversion | B♭♭ – C♭ – F♭ – G♭ |
Key Signature
A chord has no key signature of its own, but the C♭ 7sus4 is the tonic (I) chord of Cb Major, whose key signature has 7 flats (B♭, E♭, A♭, D♭, G♭, C♭, F♭).
B♭E♭A♭D♭G♭C♭F♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of C♭ Major
These are the triads built on each degree of the C♭ major scale:
C♭ 7sus4 — Frequently Asked Questions
What is the C♭ 7sus4 chord on piano?
The C♭ 7sus4 chord contains the notes C♭ – F♭ – G♭ – B♭♭. On piano, play these notes together to sound the chord.
What notes are in the Cb 7sus4 chord?
The Cb 7sus4 chord (Cb7sus4) contains 4 notes: Cb, F, G, Bb. Formula: R-P4-P5-m7.
How is Cb7sus4 used in music?
Cb7sus4 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for Cb7sus4?
Cb7sus4 uses scale degrees 1-4-5-b7, giving it its distinctive sound.