semicord

F#sus2 F# suspended second chord

Notes
F# G# C#
Formula
1 2 5
Semitones
0 2 7 above the root
Also written
Gbsus2 (Gb Ab Db)

F# to G# is a major second (2 semitones), G# to C# is a perfect fourth (5 semitones). The third is replaced by the second (G#), so the chord is neither major nor minor. The same three keys with C# in the bass read as Dbsus4 (also written C#sus4).

F#sus2 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4G#4Bb4C#5Eb5F#5Ab5Bb5C4F#G#C5C#

Root position from F#4: F#4, G#4, C#5. Middle C is C4.

F#sus2 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.

9fr×F#F#C#C#F#F#G#G#C#C#
A-shape barre, root on the A string at fret 9
x 9 11 11 9 9 (low E to high e)
Sounds F#3 C#4 F#4 G#4 C#5

The barre shapes 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 suspended second chords on other roots.

Inversions of F#sus2

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.

PositionNotes, bass firstNamedListen
Root positionF# G# C#F#sus2
1st inversionG# C# F#Ab7sus4 (also written G#7sus4; also read as F#sus2/G#)
2nd inversionC# F# G#Dbsus4 (also written C#sus4; also read as F#sus2/C#)

Where F#sus2 fits

A sus chord has no third, so it is neither major nor minor and has no fixed place in a key. In F#sus2 the second, G#, usually rises to the major or minor third or falls back to the root F#; it is also often left unresolved as a colour, especially on guitar.