F#7sus4 F# seventh suspended fourth chord
- Notes
- F# B C# E
- Formula
- 1 4 5 b7
- Semitones
- 0 5 7 10 above the root
- Also written
- Gb7sus4 (Gb Cb Db Fb)
- Other symbols
- F#7sus
F# to B is a perfect fourth (5 semitones), B to C# is a major second (2 semitones), C# to E is a minor third (3 semitones). A dominant seventh with the fourth, B, in place of the third. Like any sus chord it is neither major nor minor. With E in the bass the same four keys read as F#7sus4/E.
F#7sus4 on the piano
Root position from F#4: F#4, B4, C#5, E5. Middle C is C4.
F#7sus4 on the guitar
Standard tuning (E A D G B E). Strings run low E on the left to high e on the right, frets downwards; × is a muted string, ○ an open string, and each dot shows the note it sounds, with the root in blue-green. Every shape below has F# as its lowest note.
2 4 2 4 2 2 (low E to high e)
Sounds F#2 C#3 E3 B3 C#4 F#4
x 9 11 9 12 9 (low E to high e)
Sounds F#3 C#4 E4 B4 C#5
The E-shape and A-shape grips are movable: an E-shape chord's root is the note under your first finger on the low E string, an A-shape chord's root is the note on the A string. Slide the same grip up or down to play seventh suspended fourth chords on other roots.
Inversions of F#7sus4
An inversion puts a note other than the root in the bass. The name is what semicord's chord finder calls those notes played bottom to top; a slash name like C/E means a C chord with E in the bass.
| Position | Notes, bass first | Named | Listen |
|---|---|---|---|
| Root position | F# B C# E | F#7sus4 | |
| 1st inversion | B C# E F# | F#7sus4/B | |
| 2nd inversion | C# E F# B | C#m11 (also read as F#7sus4/C#) | |
| 3rd inversion | E F# B C# | F#7sus4/E |
Where F#7sus4 fits
F#7sus4 is V7sus4 in B major. The usual move is F#7sus4 → F#7: the fourth, B, falls a half step to the third A# while the seventh E stays. In modal jazz and gospel it is often left unresolved.