Fsus4
F Suspended 4th — the fourth suspends over the harmony and pulls down to the third — tension and release in one move.
The keys
F – B♭ – C
What's inside Fsus4
| Note | Interval from root | Degree |
|---|---|---|
| F | Root | 1 |
| B♭ | Perfect 4th | 4 |
| C | Perfect 5th | 5 |
Inversions
| Position | Keys (low → high) |
|---|---|
| Root position | F4 – B♭4 – C5 |
| 1st inversion | B♭4 – C5 – F5 |
| 2nd inversion | C5 – F5 – B♭5 |
A working voicing
Split the chord between two hands the way working players do — a solid shell low down, the colour tones up top:
| Hand | Keys |
|---|---|
| Left (shell) | F2 – C3 |
| Right (colour) | B♭4 – C5 |
Where Fsus4 lives
Suspend and resolve
Fsus4 → F
The suspension releases into the plain triad — tension, then home.
As a pad colour
Fsus → E♭ → B♭
Kept unresolved, the sus chord floats — a staple of modern pads.
Put Fsus4 under your fingers
Hear every voicing, see the keys light up, and drill it in the interactive Chord & Voicing Lab.
Open the Chord & Voicing Lab →