Fsus4 piano chord — the keys, the inversions, the theory

Fsus4 is a suspended fourth chord built from F, Bb, C. Below: the keys to press, every inversion with its own diagram, the intervals it is made of, the keys whose scale contains it, and a progression that actually uses it. Press any diagram to hear it.

Fsus4

F · Bb · C

Piano keyboardC4C5

Semitones above the root: 0 – 5 – 7

The third is replaced by a fourth, so the chord is neither major nor minor until it resolves.

Inversions of Fsus4

  • Root position

    F · Bb · C · bass F

  • Inversion 1

    Bb · C · F · bass Bb

  • Inversion 2

    C · F · Bb · bass C

Same chord, different note at the bottom. Press a diagram to hear it — inversions are how you move between chords without jumping your hand across the keyboard.

Keys that contain Fsus4

  • Dbiii
  • Abvi
  • Ebii
  • BbV
  • FI

In Ab it does this job: I – V – vi – IV

  1. Ab
  2. Eb
  3. Fsus4
  4. Db

Questions