Csus4 piano chord — the keys, the inversions, the theory

Csus4 is a suspended fourth chord built from C, F, G. 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.

Csus4

C · F · G

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 Csus4

  • Root position

    C · F · G · bass C

  • Inversion 1

    F · G · C · bass F

  • Inversion 2

    G · C · F · bass G

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 Csus4

  • CI
  • Abiii
  • Ebvi
  • Bbii
  • FV

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

  1. Csus4
  2. G
  3. Am
  4. F

Questions