F# dominant 7th suspended 4th · Piano

F#7sus4 Chord on Piano

The F#7sus4 chord (F# dominant 7th suspended 4th) is built from the notes F#, B, C# and E. The keyboard diagram below shows exactly which keys to press. The same chord is also written Gb7sus4; both spellings sound identical.

Chord diagrams

F#7sus4
F#7sus4 chord diagram for pianoBEF♯C♯

Notes in this chord

  • F♯
  • B
  • C♯
  • E

Degrees: 1 – 4 – 5 – ♭7

Also written: Gb7sus4

How to play

To play F#7sus4 on piano, press F#, B, C# and E together. In root position the lowest note is F#, 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 F#7sus4 this structure sits on the root F#, so the degrees 1 – 4 – 5 – ♭7 map onto F#, B, C# and E.

Frequently asked questions

Which notes are in the F#7sus4 chord?
F#7sus4 contains the notes F#, B, C# and E. Relative to the root these are the degrees 1 – 4 – 5 – ♭7.
Are F#7sus4 and Gb7sus4 the same chord?
Yes. F#7sus4 and Gb7sus4 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 F#7sus4 on your phone

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