G# dominant 7th suspended 4th · Piano

G#7sus4 Chord on Piano

The G#7sus4 chord (G# dominant 7th suspended 4th) is built from the notes G#, C#, D# and F#. The keyboard diagram below shows exactly which keys to press. The same chord is also written Ab7sus4; both spellings sound identical.

Chord diagrams

G#7sus4
G#7sus4 chord diagram for pianoG♯C♯D♯F♯

Notes in this chord

  • G♯
  • C♯
  • D♯
  • F♯

Degrees: 1 – 4 – 5 – ♭7

Also written: Ab7sus4

How to play

To play G#7sus4 on piano, press G#, C#, D# and F# together. In root position the lowest note is G#, and the finger numbers follow the keys left to right in the diagram.

Theory behind the chord

The 7sus4 chord combines the suspended fourth with a minor seventh. It delays resolution while keeping the dominant pull, which makes it a favourite setup chord before a V–I move. On G#7sus4 this structure sits on the root G#, so the degrees 1 – 4 – 5 – ♭7 map onto G#, C#, D# and F#.

Frequently asked questions

Which notes are in the G#7sus4 chord?
G#7sus4 contains the notes G#, C#, D# and F#. Relative to the root these are the degrees 1 – 4 – 5 – ♭7.
Are G#7sus4 and Ab7sus4 the same chord?
Yes. G#7sus4 and Ab7sus4 are enharmonically identical — the spelling differs but the frets and keys are the same. Which name is used depends on the key of the piece.

Practise G#7sus4 on your phone

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